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2 marks 7. What is direct democracy? 1 mark 8. Highlight two reasons for the formation of Kenya Africans democratic union in 1960. 2 marks 9. State two components of the national budget in Kenya. 2 marks 10. Mention two principles of the electoral system in Kenya. 2 marks 11. Name two groups that are involved in the provision of Health services in Kenya. 2 marks 12. Identify two reasons that may cause the removal of a county governor from office. 2 marks 13. Give the main function of National Defense Council of Kenya. 1 mark 14. Give two roles played by sergeant- at -arms in national assembly. 2 marks 15. Identify one philosophy adopted at independence to promote social justice in Kenya. 1 mark 16. Highlight one principle of natural justice in Kenya. 1 mark 17. What is the main function of correctional services in Kenya 1 mark SECTION B 45 MARKS Answer any three questions in this section in the space provided at the end of question 24. 18. A Identify five age sets among the Nandi traditional society. 5 marks b Describe the social organization of the Mijikenda people during the pre-colonial period. 10 marks 19. A How has the Kenyan government attempted to guarantee women rights. 5 marks b Explain five roles played by political parties in the struggle for Independence in Kenya between 1945-1963. 10 marks 20. A Mention five negative impact of the Portuguese rule on the East Coast of Africa. 5 marks b Describe five economic developments that took place in Kenya during the colonial period. 10 marks 21. A Identify five challenges faced by the Kikuyu Independent Schools Association KISA . 5 marks b Explain five contributions of Prof.Wangari Mathaai in Kenyan history. 10 marks SECTION C 30 MARKS Answer all the questions in this section in the space provided at the end of question 24. 22. A What three situations can make a registered voter to be denied the right to vote in Kenya? 3 marks b Explain six rights of an accused person during trial in a court of law in Kenya. 12 marks 23. |
A What three situations can make a registered voter to be denied the right to vote in Kenya? 3 marks b Explain six rights of an accused person during trial in a court of law in Kenya. 12 marks 23. A Give three sources of Kenyan law. 3 marks b Explain six limitations of parliamentary supremacy in Kenya. 12 marks 24. A State three functions of the Controller of Budget in Kenya. 3 marks b Explain six ways in which the recurrent expenditure funds are used by County Government of Kenya. 12 marks www.freekcsepastpapers.com History Paper 1 2 146 MARANDA HIGH SCHOOL 2023 MOCK EXAMINATION 311 2 HISTORY GOVERNMENT PAPER 2 SECTION A 25 MARKS Answer all the questions in this section in the space provided 1. What is the name given to stone tools made by early man in the second phase of the of the Old Stone Age period? 1 mark 2. Identify one invention that promoted the development of agriculture in ancient Egypt. 1 mark 3. State two ways in which the Trans-Atlantic trade contributed to the decline of the economy of West Africa communities. 2 marks 4. Give one result of space exploration. 1 mark 5. What is the advantage of using fire and smoke signals as a means of communication? 1 mark 6. State two ways in which poor transport network hinders industrialization in the third world countries. 2 marks 7. State two factors that led to the growth of Kilwa as an early urban centre. 2 marks 8. State one significance of the Royal Fire in the Mwene Mutapa kingdom? 1 mark 9. State one way in which the Ndebele benefited from the British-Ndebele war of 1893 to 1896. 1 mark 10. State two positive effects of assimilation policy to Senegal during the Colonial rule. 2 marks 11. State two roles played by the ex-war soldiers in the growth of African Nationalism After 1945. 2 marks 12. State one way in which the rise of dictators in Europe contributed to the outbreak of the Second World War. 1 mark 13. Name two categories of membership to the United Nations Security Council. |
State one way in which the rise of dictators in Europe contributed to the outbreak of the Second World War. 1 mark 13. Name two categories of membership to the United Nations Security Council. 2 marks 14. Give two economic benefits enjoyed by the members of the commonwealth. 2 marks 15. State two methods that the international community used to hasten the attainment of the majority rule in South Africa. 2 marks 16. State one reason that made Tanzania adopt a multi-party system of government in the 1990 s. 1 mark 17. Name the type of government that is practiced in Britain 1 mark SECTION B 45 MARKS Answer ANY THREE questions in this section in the space provided at the end of question 24. 18. A State five uses of stone tools by early people during the Old Stone Age period. 5 marks b Why was hunting animals mainly a group activity during the Stone Age period? 10 marks 19. A Give three ways through which trade contributed to the rise of Asante kingdom in the 18th century. 3 marks b Describe the social organization of the Asante in the 18th century. 12 marks 20. A Give five reasons why Lewanika collaborated with the British. 5 marks b Explain five results of the collaboration between Lewanika of Lozi and the British in the 19th century? 10 marks 21. A State three reasons why the British used direct rule in Zimbabwe. 3 marks b Explain six effects of British rule in Zimbabwe. 12 marks SECTION C 30 MARKS Answer ANY TWO questions in this section in the space provided at the end of question 24. 22. A Give five reasons for the formation of Economic Community of Western African States ECOWAS . 5 marks b Explain five challenges facing the African union A.U . 10 marks 23. A State three ways in which the government of the Democratic Republic of Congo promoted the education of Africans after independence. |
5 marks b Explain five challenges facing the African union A.U . 10 marks 23. A State three ways in which the government of the Democratic Republic of Congo promoted the education of Africans after independence. 3 marks www.freekcsepastpapers.com History Paper 1 2 158 LUGARI CONSTITUENCY JET - 2023 311 1 HISTORY GOVERNMENT PAPER 1 JUNE JULY 2023 SECTION A 25 MARKS Answer all the questions in this section in the spaces provided. 1. Give two factors which led to the migration and settlement of the Iteso into Kenya by 1800. 2 marks 2. State two reasons why Kenyan communities fought during the pre-colonial period. 2 marks 3. Give the main reason why early visitors from Arabia came to the Kenyan Coast before 1500. 1 mark 4. Highlight two reasons why the Agiriama were opposed to British colonial rule. 2 marks 5. Write two terms of the Anglo-German Agreement of 1886. 2 marks 6. What was the main reason for the formation of the Ukamba Members Association? 1 mark 7. Define the term constitution. 2 marks 8. Give one reason why Africans were denied equal educational opportunities with other races during the colonial period. 1 mark 9. Mention two recommendations of the Lyttelton constitution of 1954. 2 marks 10. What was the main ideological difference between Kenya Africa National Union KANU and Kenya African Democratic Union KADU before independence in 1963? 1 mark 11. Name the Scottish trader who killed 100 Maasai during the Kedong massacre. 1 mark 12. Who formed the Kenya People s Union in 1966? 1 mark 13. Outline two education commissions established in Kenya before independence. 2 marks 14. Identify two national philosophies which have been used in Kenya since independence. 2 marks 15. Give one type of parliamentary election held in Kenya. 1 mark 16. Write two roles of the Director of Public Prosecution in Kenya. 2 marks 17. |
1 mark 16. Write two roles of the Director of Public Prosecution in Kenya. 2 marks 17. Identify one type of public revenue expenditure by the National Government of Kenya. 1 mark SECTION B 45 MARKS Answer any THREE questions from this section in the foolscaps provided. 18. A Outline three stages in the Portuguese Conquest of the Coastal towns upto 1510. 3 marks b Explain six factors that led to the decline of the Portuguese rule on the Kenyan Coast. 12 marks 19. A State three ways through which communities in Kenya interacted during the pre-colonial period. 3 marks b Describe six aspects of the political organization of the Somali in Kenya. 12 marks 20. A List five principles of democracy. 5 marks b Explain five characteristics of human rights. 10 marks 21. A Write five challenges that hinder government s effort to eradicate illiteracy in Kenya. 5 marks b Explain five challenges facing the agricultural sector in Kenya. 10 marks SECTIONC 30 MARKS Answer any TWO questions from this section 22. A What five situations can make a registered voter to be denied the right to vote in Kenya? 5 marks b Describe five roles of presiding officers during elections in Kenya. 10 marks 23. A Name the three national security organs in Kenya. 3 marks b Explain six factors that make it difficult for the correctional services department in Kenya to work effectively. 12 marks 24. A Write five accounts that the Auditor-General is mandated to audit. 5 marks b Explain five functions of the Commission on Revenue Allocation. 10 marks www.freekcsepastpapers.com History Paper 1 2 170 NANDI HILLS 311 1 HISTORY GOVERNMENT PAPER 1 JULY AUGUST 2023 Section A 25 Marks Answer ALL questions in this section 1. Mention the main method used by Anthropologists to obtain information on history of a people. 1mk 2. What was the original homeland of the Eastern Cushites? 1mk 3. Identify two major groups of Nilotic Speakers in Kenya. 2mks 4. Mention two religious challenges encountered by Missionaries in East Africa in the 19th Century. |
5mks b Explain five roles played by Trade Unions to improve the lives of Kenyans during the colonial period. 10mks 21. A Identify three objectives of education offered by Christian missionaries in Kenya during the colonial period. 3mks b Explain six effects of settler farming in Kenya during the colonial period. 12mks Section C 30 Marks Answer any TWO questions in this section. 22. A Give three economic factors that promote national unity. 3mks b Explain six social rights of an individual in Kenya. 12mks 23. A Outline three functions of the National Intelligence Services. 3mks b Explain six challenges encountered by the National Intelligence Service. 12mks 24. A State five challenges faced by County Governments in Kenya. 5mks b Explain five ways in which the National Government spends its revenue. 10mks www.freekcsepastpapers.com History Paper 1 2 171 NANDI HILLS 311 2 HISTORY GOVERNMENT PAPER 2 JULY AUGUST 2023. Section A 25 Marks Answer ALL questions in this section 1. Identify one archaeological site outside East Africa. 1mk 2. State two theories that explain the origin of man. 2mks 3. Name two theories that explain how early Agriculture developed. 2mks 4. Give the main effect of land enclosure system in Britain. 1mk 5. Highlight two reasons why African slaves were more preferred during Transatlantic trade. 2mks 6. State one advantage of using pipeline over vehicles in transporting oil. 1mk 7. Mention two disadvantages of using coal as a source of energy. 2mks 8. Give two social functions of ancient city of Athens in Greece. 2mks 9. State one role of religion in the political organization of Shona Kingdom. 1mk 10. Identify two sources of British unwritten constitution. 2mks 11. State one reason why Africans in Tanganyika were against the use of Akidas. 1mk 12. Identify one method used by European powers to acquire colonies in Africa. 1mk 13. |
1mk 12. Identify one method used by European powers to acquire colonies in Africa. 1mk 13. State two conditions which one had to fulfill in order to become a French citizen in Senegal. 2mks 14. Name the Chartered Company that administered Zimbabwe during the colonial period. 1mk 15. Identify two new weapons of war employed during the First World War. 2mks 16. Mention the main factor that promoted the U.S.A. to join the First World War. 1mk 17. Name the head of the Lower Chamber of the Indian Parliament. 1mk Section B 45 Marks Answer any THREE questions in this section. 18. A State the first five stages in the evolution of man. 5mks b Describe the cultural practices of man during the Early Stone Age period. 10mks 19. A Give five characteristics of local trade. 5mks b Explain five factors which contributed to the decline of Trans-Saharan trade. 10mks 20. A State three factors that led Lewanika of the Lozi to collaborate with the British. 5mks b Explain six positive effects of European colonization of Africa. 12mks 21. A Identify five methods used by Nationalists in Ghana in their struggle for independence. 5mks b Describe five problems faced by Nationalists in South Africa. 10mks Section C 30 Marks Answer any TWO questions in this section. 22. A Name three major organs of the League of Nations. 3mks b Explain six reasons why the League of Nations failed to maintain World Peace. 12mks 23. A Identify three personalities who spearheaded the signing of the Treaty of Versailles. 3mks b Explain six results of World War II. 12mks 24. A Identify three ways in which a person may become a Member of the House of Lords in Britain. 3mks b Explain six functions of the Prime Minister in Britain. 12mks www.freekcsepastpapers.com History Paper 1 2 180 WEITHAGA 311 1 HISTORY AND GOVERNMENT SECTION A 25MKS INSTRUCTION Answer all question in this section 1. |
A Identify three ways in which a person may become a Member of the House of Lords in Britain. 3mks b Explain six functions of the Prime Minister in Britain. 12mks www.freekcsepastpapers.com History Paper 1 2 180 WEITHAGA 311 1 HISTORY AND GOVERNMENT SECTION A 25MKS INSTRUCTION Answer all question in this section 1. Identify two forms of sources of information on history and government. 2mks 2. State two economic results of the Oromo settlement in the present homeland 2mks 3. State one function of the kambi among the Mijikenda 1mk 4. State two functions of fort Jesus to the Portugues during their rule 2mks 5. Identify two ways of becoming a Kenyan citizen 2mks 6. Identify one of the national holidays cerebrated in Kenya 1mk 7. Give the main problem facing Nairobi 1mk 8. State two characteristics of a good constitution. 2mks 9. Mention any type of representative democracy. 1mk 10. State one reason why Africans in Kenya were denied the right to grow cash crops during the colonial period 1mk 11. Who introduced dairy farming in Kenya? 1mk 12. Give two demands of African Elected members organization A, E.M.O 2mks 13. Who is the head of Judiciary in Kenya. 1mk 14. Give two functions of National intelligence service. 2mks 15. Name one level of government in Kenya. 1mk 16. Identify two sources of Nyayo philosophy. 2mks 17. Identify one type of public expenditure. 1mk SECTION B 45MKS Answer any three questions from this section 18. A State three ways through which the Luo and Abagusii interacted during the pre-colonial period. 3mks b Describe the Economic organization of the Somali in the 19th c. 12mks 19. A Identify three reasons why seyyid said transferred his capital from Muscat to Zanzibar. 3mks b Explain six results of the long-distance trade 12mks 20. |
12mks 19.a Identify three reasons why seyyid said transferred his capital from Muscat to Zanzibar. 3mks b Explain six results of the long-distance trade 12mks 20.a Give five reasons why the British established control over Kenya. 5mks b Explain five negative effects of urbanization 10mks 21.a Identify three challenges faced by Kikuyu independent schools Association KISA during the colonial period in Kenya 3mks b Explain six effects of Mau-mau rebellion in Kenya. 12mks SECTION C Answer any two questions from these sections 22. A Name three social causes of conflicts in Kenya. 3mks b Explain six effects of conflicts in Kenya Today 12mks 23. A Give five conditions that may lead to a by-election in parliament 5mks b Describe the process of formation of national government in Kenya 10mks 24. A Identify five occasions when an individual can be arrested in Kenya. 5mks b Explain five reforms that have been made to improve conditions of correctional services in Kenya 10mks. |
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K.C.S.E YEAR 2010 PAPER 313 21. A Describe four activities that took place during the dedication of Jesus in the Temple Luke 2: 22 - 40 . 8 marks b Outline seven lessons Christians learn from the incident when Jesus was left behind by his parents inthe Temple Luke 2: 41 - 52 . 7 marks c State five ways in which Christians show respect to places of worship in Kenya today. 5 marks 2. A With reference to the sermon on the plain, state five teachings of Jesus on how human beingsshould relate to one another. 5 marks b Describe the incident in which Jesus calmed the storm Luke 8: 22 - 25 . 10 marks c Identify five virtues that Christians learn from the miracle of the feeding of the five thousand. 5 marks 3. A State four accusations that were made against Jesus during his trial Luke 22: 66 - 23: 1 - 23 . 4 marks b Give five reasons why Jesus appeared to His disciples after resurrection. 10 marks c Why should Christians be discouraged from taking part is mob justice? 6 marks 4. A Explain the teaching of Peter concerning the people of God 1st Peter 2: 9- 10 . 10 marks b Give six ways through which Christians can promote unity among themselves in Kenya today. 6 marks c State how kindness as a fruit of the Holy Spirit is abused in the Church in Kenya today. 4 marks 5. A State four similarities between the Christian and traditional African view on marriage. 8 marks b Give six reasons why some young people are choosing to remain unmarried in Kenya today. 6 marks c Identify six ways in which the Church is helping to solve the problem of domestic violence inKenya today. 6 marks 6 a Explain the Christian view on plastic surgery hi Kenya today. 10 marks b Describe four ways through which science and technology has negatively affected the environment created by God. 4 marks c How can the youth in the Church carry out environmental restoration in Kenya today? 6 marks For More Free KCSE past papers visit www.freekcsepastpapers.com. |
NameIndex Number233 1 Candidate s SignatureCHEMISTRYPaper 1 Date..............................Nov. 20162 hoursTHE KENYA NATIONAL EXAMINATIONS COUNCIL Kenya Certificate of Secondary EducationCHEMISTRY Paper 1 THEORY 2 hoursInstructions to candidates a Write your name and index number in the spaces provided above. B Sign and write the date of examination in the spaces provided above. C Answer all the questions in the spaces provided in the question paper. D KXEC mathematical tables and silent non-programmable electronic calculators may be used. E All working must be clearly shown where necessary f This paper consists of 16 printed pages. G Candidates should check the question paper to ascertain that all the pages are printed as indicated and that no questions are missing. H Candidates should answer the questions in English. For Examiner s Use OnlyQuestionMaximumCandidate s ScoreScore1-2980916502 2016 The Kenya National Examinations CouncilTurn overfor free past papers visit: www.freekcsepastpapers.com21. A student investigated the effect of an electric current by passing it through some substances. The student used inert electrodes and connected a bulb to the circuit. The table below shows the substances used and their states. ExperimentSubstanceState1Potassium carbonateSolid2Copper II sulphateSolution3SugarSolution4Lead II iodideMolten a In which experiment did the bulb not light? 1 mark b Explain your answer in a above. 2 marks 2. An alkanol has the following composition by mass: hydrogen 13.5 , oxygen 21.6 and carbon 64.9 . A Determine the empirical formula of the alkanol. C 12.0, H 1.0, O 16 2 marks Kenya Certificate of Secondary Education, 2016916502for free past papers visit: www.freekcsepastpapers.com3 b Given that the empirical formula and the molecular formula of the alkanol are the same, draw the structure of the alkanol. 1 mark 3. |
An alkanol has the following composition by mass: hydrogen 13.5 , oxygen 21.6 and carbon 64.9 . A Determine the empirical formula of the alkanol. C 12.0, H 1.0, O 16 2 marks Kenya Certificate of Secondary Education, 2016916502for free past papers visit: www.freekcsepastpapers.com3 b Given that the empirical formula and the molecular formula of the alkanol are the same, draw the structure of the alkanol. 1 mark 3. The figure below shows an energy cycle. A Give the name of the enthalpy change AHr 1 mark b Determine the value of AH . 2 marks 916502Kenya Certificate of Secondary Education, 2016233 1Turn overfor free past papers visit: www.freekcsepastpapers.com44. The set up below was used to investigate the reaction between dry hydrogen gas and copper II oxide.flame a Name substance A. 1 mark b State the observation made in the combustion tube. 1 mark c Explain the observation made in b above. 1 mark Kenya Certificate of Secondary Education, 2016Qifisn?for free past papers visit: www.freekcsepastpapers.comStarting with sodium metal, describe how a sample of crystals of sodium hydrogen carbonate may be prepared. 3 marks Ammonium Ion has the following structure.1 HAHNHHjLabel on the structure the: a Covalent bond 1 mark b Coordinate dative bond 1 mark Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com67. When 8.53 g of sodium nitrate was heated in an open test tube, the mass of oxygen gas produced was 0.83 g. Given the equation of the reaction as:2NaNO . -. 2NaNO . 0 ,3 s 2 sl 2 g Calculate the percentage of sodium nitrate that was converted to sodium nitrite Na 23.0, N 14.0, O 16.0 3 marks 8. |
The atomic number of sulphur is 16. Write the electron arrangement of sulphur in thefollowing? 2 marks a H2S .. b so32Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com1117. A compound whose general formula is M OH 3 reacts as shown by the equation. M OH , ; OH aq M OH 3 s 3H aq M OH - 4 aq M3 3H70- aq 2 1 a What name is given to compounds which behave like M OH in the two reactions. 1 mark b Name two elements whose hydroxides behave like that of M. 2 marks 18. A water trough, aqueous sodium hydroxide, burning candle, watch glass and a graduated gasjar were used in an experimental set up to determine the percentage of active part of air. Draw a labelled diagram of the set up at the end of the experiment. 3 marks cn sn?Kenya Certificate of Secondary Education, 2016233 1Turn overfor free past papers visit: www.freekcsepastpapers.com1219, In an experiment on rates of reaction, potassium carbonate was reacted with dilute sulphuric VI acid. A What would be the effect of an increase in the concentration of the acid on the rate of the reaction? 1 mark b Explain why the rate of reaction is found to increase with temperature. 2 marks 20. 60 cm3 of oxygen gas diffused through a porous partition in 50 seconds. How long would it take60 cm3 sulphur IV oxide gas to diffuse through the same partition under the same condition? S 32.0, O 16.0 3 marks RKenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com1321. Draw and name the isomers of pentane. 3 marks 22. The set up below was used to collect a dry sample of a gas. Give two reasons why the set up cannot be used to collect carbon IV oxide gas. 2 marks 23. |
Draw and name the isomers of pentane. 3 marks 22. The set up below was used to collect a dry sample of a gas. Give two reasons why the set up cannot be used to collect carbon IV oxide gas. 2 marks 23. Given the following substances: wood ash, lemon juice and sodium chloride. A Name one commercial indicator that can be used to show whether wood ash. Lemon juice and sodium chloride are acidic, basic or neutral. 1 mark b Classify the substances in a above as acids bases or neutral. 2 marks i lAcid Base ! Neutral!Kenya Certificate o f Secondary Education, 2016711 t916502for free past papers visit: www.freekcsepastpapers.comDescribe how a solid sample of potassium sulphate can be prepared starting with 200 cm3 of 2M potassium hydroxide. 3 marks Charcoal is a fuel that is commonly used for cooking. When it bums it forms two oxides. A Name the two oxides 2 marks b State one use of the two oxides. 1 mark Hydrogen sulphide is a highly toxic and flammable gas. It is normally prepared in a fume chamber. A Name two reagents that can be used to prepare hydrogen sulphide in the laboratory. 1 mark Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com15 b One of the uses of hydrogen sulphide is to produce sulphur as shown in the following equation.2H S .2 g SO. G 3S S - ll Identify the reducing agent in this reaction and give a reason for your answer. 1 mark c Other than production of sulphuric VI acid. State one commercial use of sulphur. 1 mark r27. Describe an experimental procedure that can be used to extract oil from nut seeds. 2 marks Kenya Certificate of Secondary Education, 2016916502 222 1 Turn nvprfor free past papers visit: www.freekcsepastpapers.com28. A mixture contains ammonium chloride. Copper II oxide and sodium chloride. Describe how each of the substances can be obtained from the mixture. 3 marks 29. |
Copper II oxide and sodium chloride. Describe how each of the substances can be obtained from the mixture. 3 marks 29.When a student was stung by a nettle plant, a teacher applied an aqueous solution of ammonia to the affected area of the skin and the student was relieved of pain. Explain. 2 marks THIS IS THE LAST PRINTED PAGE.Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com. |
F................................................................................. G................................................................................ b State one function of each of the parts labelled H and J.H................................................................................J.................................................................................For More Free KCSE past papers visit www.freekcsepastpapers.com7..The diagram below represents a set-up that students used in an investigation.a Name-the physiological process that was being investigated. 1 mark b State the role of potassium hydroxide in flask K. 1 mark c Account for the observation in boiling tube L and flask N. 2marks L.................................................................................................. N 8. What is the probability of a couple with blood group AB getting a child with bloodgroup AB? Show your working. 4 marks 9State the importance of negative phototaxis to termites. 1 mark 10 What is meant by the term irritability? 1 mark 11 a State two ways in which heart muscles are special. 2 marks c Name the muscles found in the following organs; 2 marks For More Free KCSE past papers visit www.freekcsepastpapers.comstomach;..........,....................................,....................................,........................ bone.....................................................................................................................12 a Name the part of a light microscope used to bring an image of a specimen intosharp focus. I mark b Why is it recommended to keep the stage of the microscope dry? 1mark 13State three factors that affect the rate of diffusion. 3 marks 14 a Name the type of respiration that is most efficient. 1 mark b Give a reason for your answer in a above 1mks 15.What name is given to a group of hormones that controls the development ofsecondary sexual characteristics in a human male?1 mk 16.The diagram below represents an experimental set-up used by students to investigatea certain process. For More Free KCSE past papers visit www.freekcsepastpapers.comFlower Q produced seeds while P did not. Account for the results.17. Name two substances that leave the foetal blood through the placenta. 2 marks 18.Why are plants able to accumulate most of their waste products for long? 1 mark 19. List four symptoms of diabetes mellitus. 4 marks 20. State three aspects that can be used to estimate growth in seedlings. 3 marks 21. |
4 marks 20.State three aspects that can be used to estimate growth in seedlings. 3 marks 21.Name the process through which free atmospheric nitrogen is converted intonitrates. L mark 22.State the importance of divergent evolution to organisms. 2marks 23.Name the strengthening materials found in the following support tissues: 2 marks a collenchyma;................................................................................... b xylem..............................................................................................24.State four characteristics of apical meristem cells. 4marks For More Free KCSE past papers visit www.freekcsepastpapers.com25 State the role of the following hormones in the life cycle of insects: 2 marks ecdysone hormone; ......................................................................................... , juvenile hormone...............................................................................................26 a State the theories of evolution proposed by the following scientists. 2marks Darwin .................................Jean-BaptisteLamarck............................................................ ., . B State the evidence of evolution based on Cell i organelles ii fossils ..27.What is the function of contractile vacuoles in amoeba? 1mark 28.state two differences between open and closed circulatory systems. 2marks 29.Name two nutrients that are absorbed without being digested by enzymes inhumans. 2 marks 30.Name the organelle that is involved in each of the following: 2 marks a manufacture of lipids . B formation of lysomes ..2012 BIOLOGY QUESTIONSFor More Free KCSE past papers visit www.freekcsepastpapers.com. |
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THE KENYA NATIONAL EXAMINATION COUNCIL Kenya Certificate of Secondary Education PHYSICS PRACTICAL Paper 3 21 2 hours You ae provided with the flowing ames rue, Smoptcal pia xed toa piece of cork eto nds, ro bones and oo clamps.2 Sop atch,ome thread ed toa mas,Proceed ae follows 2 Setup the apparatus at shown in figure The tread tied to the mass should be held firmly between the two blocks of wood st lamped to the upper end of the stan 20 that the masr hangs fey. The dsance been the point of support andthe cenze ofthe tase 100 Sm, Emuure that emnsina conmeant throuphout the experi Adjust the lower clamp so that the optical pin just touches the thread when the hangingmass is at rest Adjust the postion ofthe lower clamp so thatthe pin is ata distance X 35cm abovetthe cenise uf dhe miss. Dipplace dhe mass slightly to one side and release Ko that swings ina plane perpendicular tothe pin and the tread hits the pin as shown inFigure 2 Figure? Measure and record in table 1 the time t for 20 oscillations. Repeat the procedure in b for other values of X shown in table 1 Complete the table, Table LDisance Kem 38 OS OSS Tw Tine tor 20ose 5 T Bmarks 7 os nthe grid provided 4 Plott graph of Ty-annagiontX. mats F tT Determine the soe ofthe graph a post X 26m, marks f Determine the constant given that n 28 2 marks Determine te as genta Pa ems You are provided with he following:- avolmeter, twocells anda cell holder.2 asmich asetof six esistors each of resistance 10000 connecting wites. Proceed ss follows: Sot up the apparatus as shown inthe circuit diagram in Figure 3. |
The dsance been the point of support andthe cenze ofthe tase 100 Sm, Emuure that emnsina conmeant throuphout the experi Adjust the lower clamp so that the optical pin just touches the thread when the hangingmass is at rest Adjust the postion ofthe lower clamp so thatthe pin is ata distance X 35cm abovetthe cenise uf dhe miss. Dipplace dhe mass slightly to one side and release Ko that swings ina plane perpendicular tothe pin and the tread hits the pin as shown inFigure 2 Figure? Measure and record in table 1 the time t for 20 oscillations. Repeat the procedure in b for other values of X shown in table 1 Complete the table, Table LDisance Kem 38 OS OSS Tw Tine tor 20ose 5 T Bmarks 7 os nthe grid provided 4 Plott graph of Ty-annagiontX. mats F tT Determine the soe ofthe graph a post X 26m, marks f Determine the constant given that n 28 2 marks Determine te as genta Pa ems You are provided with he following:- avolmeter, twocells anda cell holder.2 asmich asetof six esistors each of resistance 10000 connecting wites. Proceed ss follows: Sot up the apparatus as shown inthe circuit diagram in Figure 3. Figure Gooe oonat osot Tooot Toons eet Record the voltmeter reading E, when the crocodile clips are connected together a ots or Open the switch and separate the crocodile clips. Indicate by ticking below. The range ofthe vollmeter usedo-wv TJ o-sv GE onyGi Now connect the crocodile clips across resistance R 10000. Close the switchand record in table 2 the voltmeter reading V. |
Figure Gooe oonat osot Tooot Toons eet Record the voltmeter reading E, when the crocodile clips are connected together a ots or Open the switch and separate the crocodile clips. Indicate by ticking below.the range ofthe vollmeter usedo-wv TJ o-sv GE onyGi Now connect the crocodile clips across resistance R 10000.Close the switchand record in table 2 the voltmeter reading V.Open the switch, Repeat the procedure in bi for other values of resistance R shown in the table Complete the table wi 2005306 7000 Grails onthe poi atte hot api arts Mr ur ae ota 0h wy page tL ais orm 705 the mile ofthe pags Determine the slope S ofthe graph.marks Daten he coment G gven that 5 mas From the graph determine mark Veuthe value of V when R 0For more great stuff click or visit:www.changeyourT.comwww.arimifoods.comwww.joshuaarimi.com. |
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1413.12HINDU RELIGIOUS EDUCATION 315 3.12.1 Hindu Religious Education Paper 1 315 1 For More Free KCSE Past papers Visit www.freekcsepastpapers.com1423.12.1 Hindu Religious Education Paper 2 315 12For More Free KCSE Past papers Visit www.freekcsepastpapers.com. |
1393.11 ISLAMIC RELIGIOUS EDUCATION 314 3.11.1 Islamic Religious Education Paper 1 314 1 For More Free KCSE Past papers Visit www.freekcsepastpapers.com1403.11.2 Islamic Religious Education Paper 2 314 2 For More Free KCSE Past papers Visit www.freekcsepastpapers.com. |
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31. What name is given to elements which appear in group II of theperiodic table? 1mark CHEM. 2011PAPER 21.The flow chart below shows some of the processes involved in largescale production of sulphuric VI acid. Use it to answer the questionsthat follow. A Describe how oxygen is obtained from air on a large scale 3 marks b i Name substance A. ii Write an equation for the process that takes place in theabsorption chamber. 1mark c Vanadium V oxide is a commonly used catalyst in the contact process. I Name another catalyst which can be used for this process. 1 mark ii Give two reasons why vanadium V oxide is the commonly usedcatalyst. 2 marks d State and explain the observations made when concentratedsulphuric VI acid isadded to crystals of copper II sulphate in a bearer. 2 marks e The reaction of concentrated sulphuric VI acid with sodiumchloride produces hydrogen chloride gas. State the property of concentrated sulphuric VI acid,illustrated in this reaction. 1mark f Name four uses of sulphuric VI acid2.The set-up below was used by a student to investigate the productsformed when aqueous copper II chloride was electrolysed usingcarbon electrodes. A i Write the equation for the reaction that takes place at thecathode. 1 mark ii Name and describe a chemical test for the product initially formedat the anode when a highly concentrated solution of copper II chloride is electrolysed. 3 marks iii How would the mass of the anode change if the carbon anode wasreplaced with copper metal? Explain. 2 marks b 0.6 g of metal B were deposited when a current of 0.45A was passedthrough an electrolyte for 72 minutes. Determine the charge on theion of metal B. Relative atomic mass of B 59, 1 Faraday 96 500 coulombs 3marks c The electrode potentials for cadmium and zinc are given below:why it is not advisable to store a solution of cadmium nitrate in acontainer made of zinc 2 marks 3. |
3 marks iii How would the mass of the anode change if the carbon anode wasreplaced with copper metal? Explain. 2 marks b 0.6 g of metal B were deposited when a current of 0.45A was passedthrough an electrolyte for 72 minutes. Determine the charge on theion of metal B. Relative atomic mass of B 59, 1 Faraday 96 500 coulombs 3marks c The electrode potentials for cadmium and zinc are given below:why it is not advisable to store a solution of cadmium nitrate in acontainer made of zinc 2 marks 3. A Ethanol can be manufactured from ethene and steam asshown in the equation below: C2 H4 g H2 O g CH 3CH 2OH g Temperature and pressure will affect the position of equilibriumof the abovereaction. Name the other factor that will affect the position ofequilibrium of the above reaction. 1mark b The data in the table below was recorded when one mole of ethenewas reactedwith excess steam. The amount of ethanol in the equilibrium mixturewasrecorded under different conditions of temperature and pressure. Use thedata toanswer the questions that follow. I State whether the reaction between ethene and steam is exothermic orendothermic. Explain your answer. 3 marks ii State and explain one advantage and one disadvantage of usingextremely high pressure in this reaction. I AdvantageII disadvantage c In an experiment to determine the rate of reaction between calciumcarbonate and dilute hydrochloric acid, 2g of calcium carbonate werereacted with excess 2 M hydrochloric acid, The volume of carbon IV oxide evolved was recorded at regular intervals of one minute for sixminutes. The results are shown in the table below. Time minutes Volume of carbon IV oxide cm3 i plot a graph of time in minutes on the horizontal axis againstvolume ofcarbon IV oxide on the vertical axis. Ii determine the rate of reaction at 4 minutes 2marks 4 a When excess calcium metal was added to 50 cm3 of 2 Maqueous copper II nitrate in a beaker, a brown solid andbubbles of gas were observed. I "Write two equations for the reactions which occurred in thebeaker. |
I AdvantageII disadvantage c In an experiment to determine the rate of reaction between calciumcarbonate and dilute hydrochloric acid, 2g of calcium carbonate werereacted with excess 2 M hydrochloric acid, The volume of carbon IV oxide evolved was recorded at regular intervals of one minute for sixminutes. The results are shown in the table below. Time minutes Volume of carbon IV oxide cm3 i plot a graph of time in minutes on the horizontal axis againstvolume ofcarbon IV oxide on the vertical axis. Ii determine the rate of reaction at 4 minutes 2marks 4 a When excess calcium metal was added to 50 cm3 of 2 Maqueous copper II nitrate in a beaker, a brown solid andbubbles of gas were observed. I "Write two equations for the reactions which occurred in thebeaker. 2 marks ii Explain why it is not advisable to use sodium metal for thisreaction. B Calculate the mass of calcium metal which reacted with copper II nitrate solution. Relative atomic mass of Ca 40 2mark c The resulting mixture in a above wasfiltered and sodiumhydroxide added to the filtrate dropwise until in excess. What observationswere made? 1mark d i Starting with calcium oxide, describe how a solid sample of calcium carbonate can be prepared. Ii Name one use of calcium carbonate5. A Other than their location in the atom, name two other differencesbetween anelectron and a proton. B the table below gives the number of electrons ,protons andneutrons in particles A,B, C , D, E, F and GparticleProtonselectronsneutronsABCDEFG i Which particle is likely to be a halogen? 1mark ii what is the mass number of E iii write the formula of the compound formed when E combines with G 1 mark iv Name the type of bond formed in iii above. V How does the radii of C and E compare ? Give reason. 2 marks vi Draw a dot . And cross x diagram for the compound formed between 1 mark vii Why would particle B not react with particle D ? |
1 mark b State the Hess's Law.c Use the following standard enthalpies of combustion ofgraphite, hydrogen and enthalpy of formation of propane. I Write the equation for the formation of propane. 1 mark ii Draw an energy cycle diagram that links the heat of formation of propanewith its heat of combustion and the heats of combustion of graphiteand hydrogen. Iii Calculate the standard heat of combustion of propane. 2marks Other than the enthalpy of combustion, state one factor which should beconsideredwhen choosing a fuel. 1 mark d e The molar enthalpies of neutralization for dilute hydrochloric acid anddilute nitric V acid are -57.2kJ mol while that of ethanoic acid is 55.2kJ mol. Explain this.observation. 2marksChemistry paper 3 2011You are provided with: 1.60g of solid A, a dibasic acid. Solution B containing 4.75g per litre of salt B. Aqueous sodium hydroxide, solution C. Phenolphthalein indicator. You are required to prepare a solution of solid A and use it to determine the: Concentration of sodium hydroxide, solution C React salt B with excess sodium hydroxide and then determine the relativemolecular mass of salt B.Procedure I a Using a burette, place 25.0cm3 of solution B in each of two 250ml conicalflasks. Using a pipette and pipette filler, add 25 .Ocm3 of solution C to each of thetwo conical flasks. The sodium hydroxide added is in excess . Label theconical flasks 1 and 2. B Heat the contents of the first conical flask to boiling and then let themixture boil for 5 minutes. Allow the mixture to cool. C Repeat procedure b with the second conical flask. While the mixtures are cooling, proceed withprocedure II. Procedure II a Place all of solid A in a 250 ml volumetric flask. Add about 150cm3 ofdistilled water, shake well to dissolve the solid and then add water to makeup to the mark. Label this as solution A. b Place solution A in a clean burette. |
Procedure II a Place all of solid A in a 250 ml volumetric flask. Add about 150cm3 ofdistilled water, shake well to dissolve the solid and then add water to makeup to the mark. Label this as solution A. b Place solution A in a clean burette. Using a pipette and pipette filler, place25.0cm3 of solution C in a 250ml conical flask. Add 2 drops ofphenolphthalein indicator and titrate with solution A. Record your results inTable 1. Repeat the titration two more times and complete the table. I Average volume of solution A used: 1 2marks ii Concentration in moles per litre of the dibasic acid in solution A; 2marks Relative molecular mass of A is 126 . Iii Moles of the dibasic acid used; 1mark iv moles of sodium hydroxide in 25.0cm3 of solution C. 1 mark v Concentration of sodium hydroxide in moles per litre. 2 marks Calculate the: i average volume of solution A used; 1 2marks ii moles of the dibasic acid used; 1 mark iii moles of sodium hydroxide that reacted with the dibasic acid. 1mark iv moles of sodium hydroxide that reacted with 25.0cm3 of salt B in solutionB; 2 marks v Given that 1 mole of salt B reacts with 2 moles of sodium hydroxide,calculate the:I. number of moles of salt B in 25.0cm3 ofsolution B; 1 mark II. Concentration in moles per litre of salt B in solution B; 1 mark III.Relative molecular mass of salt B; 2 marks 2. A You are provided with solid D. Carry out the following tests and write yourobservations and inferences in the spaces provided. I Place about one half of solid D in a test-tube and heat it strongly. Test anygases produced with both red and blue litmus papers. OGi Place the rest of solid D in a boiling tube, Add about 10cm! Of distilled water,Shake well. Toa 2em portion of the solution, adel about Lem of hydrogen peroxide and shake wel. To the resulting mixture. |
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Fire not only changed food's chemistry, it changed is biology as well. Cooking killed germs and parasitesthat infested food. Humans also had a far easier time chewing and digesting old favourites suchfruits, nus, insects, and carrion if they were cooked. Whereas chimpanzees spend five hours aday chewing raw food, a single hour suffices for people eating cooked food. The advent of cooking enabled humans to eat more kinds of food, to devote less timeto eating and to make do with smaller teeth and shorter intestines. Some scholars believe thereis a direct link between the advent of cooking, the shortening of the human intestinal track, andthe growth of the human brain, Since long intestines and large brains are both massive energy consumers, it's hard to have both. By shortening the intestines and decreasing their energy consumption, cooking inadvertently opened the way to the jumbo brains of Neanderthals and Sapiens. The domestication of fire was, therefor, a sign of things to come. Adapted from Sapiens: A brief History of Humankind by Yuval Noah Harari: London: VintageBooks, 2011. Kenya Certificate of Secondary Education, 2019919240 10123 According tothe author, when did humans invent fire? 2 marks b In about 5 words, summarise what early humans used fire for before they cookedwith it. S marks Rough copy Fair copy Kenya Certificate of Secondary Education, 2019919240 1012 Turn over o19240entity four advantages of cooked food. Explain the link that the author Sees between eating cooked food and the development of the human brain, G marks What isthe main point of this passage? Marks Explain the meaning of each of the following words as used in the passage: 4 marks dependable ..Gi entrepreneurs Gil advent Gv inadvertently . Kenya Certificate of Secondary Education, 2019101729192402. Henrik ibsen, A Doll s HouseRead the excerpt below and then answer the questions that follow. 25 marks Children: in the doorway on the left Mother, the stranger man has gone out through thegateNora Yes, dears, know. But, don t tell anyone about the stranger man. |
Henrik ibsen, A Doll s HouseRead the excerpt below and then answer the questions that follow. 25 marks Children: in the doorway on the left Mother, the stranger man has gone out through thegateNora Yes, dears, know. But, don t tell anyone about the stranger man. Do you hear? Not even papa. Children; No, mother; but will you come and play again?Ne No, no, not now. Children: But, mother, you promised us. Nora: Yes, but I can t now. Run away in; Ihave such a lot to do. Run away in, my sweetlitle darlings. She gets them into the room by degrees and shuts the door on them; then sits down on the sofa, takes up a piece of needlework and sews a fewstitches, but soon stops. No! Throws down the work, gets up, goes to the halldoor and calls out Helen! Bring the Tree in. Goes to the table on the left, opens adrawer; and stops again No, no! Itis quite impossible!Maid coming in with the Tree Where shall I put it, ma'am?Nora: Here, in the middle of the floor. Maid: Shall I get you anything else?Nora: No, thank you. Have all I want. Exit MAID. Nora begins dressing the tree A candle here and flowers here The horrible man!It s all nonsense thee nothing wrong. The tree shall be splendia! I will do everything I can think of to please you, Torvald! I will sing for you, dance foryou HELMER comes in with some papers under his arm. Ohi are you backalready?Helmer: Yes. Has anyone been here?Nora: Here? No. Helmer: That is strange. I saw Krogstad going out ofthe gate. Nora: Did you? |
Has anyone been here?Nora: Here? No. Helmer: That is strange. I saw Krogstad going out ofthe gate. Nora: Did you? Oh yes, I forgot, Krogstad was here for a moment,Helmer: Nora, I can see from your manner that he has been here begging you to say agood word for him,ema Creo Scary Eaton, 209 aiain TurnoverNora: Yes. Helmer: And you were to appear to do it of your own accord; you were to conceal from,ime the fact of his having been here; didn t he beg that of you too?Nora Yes, Torvald, but Helmer; Nora, Nora, and you would be a party to that sort of thing? To have any talk with aman like that, and give him any sort of promise? And to tell me lie into thebargain?Nora Alie ? Helmer: Didn't you tell me no one had been here? Shakes his finger at her My litle song.bird must never do that again. A songbird must have a clean beak to chirp with no false notes! Puts his arm round her waist That isso, isn t it? Yes, Iam sureit is. Lets her go. We will say no more about it. Sits down by the stove How warm and snug itis here! Turns over his papers Place the excerpt inits immediate context. 4 marks b The Christmas tree is mentioned many times inthe play. What does it stand for? B marks Deseribe the character of Helmer as brought out in the excerpt. 4 marks Kenya Certificate of Secondary Education, 201919240 1012 wo hy919240 7What is the role ofthe children in the play? Marks Identify and illustrate two styl 4 marks Identify and illustrate two themes brought out in the play. 4 marks Don't tell anyone about the stranger man. Rewrite beginning: Under... I mark Describe the tone of this passage. |
Marks Identify and illustrate two styl 4 marks Identify and illustrate two themes brought out in the play. 4 marks Don't tell anyone about the stranger man. Rewrite beginning: Under... I mark Describe the tone of this passage. Marks Kenya Certificate of Secondary Education, 201910172 Turn over3 Read the story below and then answer the questions that follow. Once upon a time a father sent for his three sons and gave to the eldest a cock, tothe second ascythe, and the third a cat. I am now old , said he, my end is approaching, and I would fainprovide for you before I die. Money I have none, and what I now give you seems of litle worth;yeti rests with yourselves alone to turn my gifts to good account. Only seek out for a land where what you have is as yet unknown, and your fortune is made. Afier the death of the father, the eldest set out with his cock: but wherever he went, in every town, he saw from a far off a cock sitting upon the church steeple, and turning round withthe wind, In the villages he always heard plenty of them crowing, and his bird was thereforenothing new; so there did not seem much chance of his making his fortune. At length it happenedthat he eame to an island where the people who lived there had never heard of a cock and knew not even how to reckon the time. They knew indeed if it were moming ot evening; but at night ifthey lay awake, they had no means of knowing how time went, Behold, said he to them, what a noble animal this is! He carries a bright red crest upon.his head, and spurs upon his heels; he crows three times every night at stated hours, and atthethird time the sun is about to rise. But this isnot all; sometimes he screams in broad daylight, andthen you must take warning, for the weather is surely about to change. This pleased the natives mightily; they kept awake one whole night, and heard, to their great joy, how gloriously the cockcalled the hour, at two, four and six o'clock. Then they asked him whether the bird was tobe sold,and how much he would sell it for. About as much as an ass can carry, said he. A. |
But this isnot all; sometimes he screams in broad daylight, andthen you must take warning, for the weather is surely about to change. This pleased the natives mightily; they kept awake one whole night, and heard, to their great joy, how gloriously the cockcalled the hour, at two, four and six o'clock. Then they asked him whether the bird was tobe sold,and how much he would sell it for. About as much as an ass can carry, said he. A. very fair price for such an animal, cried they with one voice; and agreed to givehim what he asked. When he returned home with his wealth, his brothers wondered greatly; and the secondsaid, I will now set forth likewise, and see if I can tur my seythe to as good an account. Theredid not seem, however, much likelihood of this; for go where he would, he was met by peasantswho had as good a scythe on their shoulders as he had. But at last, as good luck would have it,the came to an island where the people had never heard of a scythe; there, as soon asthe corn wasripe, they went into the fields and pulled it up; but this was very hard work and a great deal of it was lost. The man then set to work with his scythe; and mowed down their whole crop so quickly,thatthe people stood staring open-mouthed with wonder. They were willing to give him what heasked for such a marvelous thing; but he only took a horse laden with as much gold as it ouldcarryNow the third brother had a great longing, to go and see what he could make of his eat. So eset out; and at first it happened to him as it had tothe others, so long as he kept upon the msland, he met with no success; there were plenty of eats everywhere, indeed too many, so that the young ones were for the most part, as soon as they came into the world, drowned in the water. Atlast he passed over to an island where, as it chanced most luckily for him, nobody had ever seenand they were overrun with mice to such a degree, thatthe little wretches danced upon thetables and chairs, whether the master of the house were at home or not. |
They were willing to give him what heasked for such a marvelous thing; but he only took a horse laden with as much gold as it ouldcarryNow the third brother had a great longing, to go and see what he could make of his eat. So eset out; and at first it happened to him as it had tothe others, so long as he kept upon the msland, he met with no success; there were plenty of eats everywhere, indeed too many, so that the young ones were for the most part, as soon as they came into the world, drowned in the water. Atlast he passed over to an island where, as it chanced most luckily for him, nobody had ever seenand they were overrun with mice to such a degree, thatthe little wretches danced upon thetables and chairs, whether the master of the house were at home or not. The people complainedloudly of this grievance; the King himself knew not how to rid him self of them in his palaevery comer mice were squeaking, and they gnawed everything that their teeth could lay hold Kenya Certificate of Secondary Education, 201919240 101729 of, Here was a fine field for Puss she soon began her chase and had cleared two rooms in thetwinkling of an eye; when the people besought their King to buy the wonderful animal, for the B00d ofthe public, at any price. The King willingly gave what was asked a mule laden with gold nd jewels; and thus the third brother returned home with a richer prize than either of the others. Meanwhile the cat feasted away upon the mice in the royal palace, and devoured so manythat they were no longer in any great numbers. At length, quite spent and tired with her work shebecame extremely thirsty; so she stood still, drew up her head, and cried, Miau, Miau! Whenthe people heard this ery they ran shrieking in great fright. The King and his council decided to send a herald to the cat to warn her to leave the castle forthwith, or that force would be used toremove her. |
Meanwhile the cat feasted away upon the mice in the royal palace, and devoured so manythat they were no longer in any great numbers. At length, quite spent and tired with her work shebecame extremely thirsty; so she stood still, drew up her head, and cried, Miau, Miau! Whenthe people heard this ery they ran shrieking in great fright. The King and his council decided to send a herald to the cat to warn her to leave the castle forthwith, or that force would be used toremove her. We would far more willingly put up with the mice since we are used to that evil ,than get rid of them atthe risk of our lives. A page accordingly went and asked the cat whether she was willing to quit the castle, But Puss, whose thirst became every moment more and more pressing answered Miau! Miau! Which the page interpreted to mean, No! No! And therefore carried this answer to the King. Then we must try what force will do, the Ki So the guns were planted, and thepalace was fired upon from all sides. When the fire reached the room where the cat was, shesprang out of the window and ran away; but the besiegers did not see her, and went on.firing uni the whole palace was burnt to the ground, Adapted from Grimm's Fairy Tales by Jacob and Wilhelm Grimm How does the father prepare his sons fora life without hin? 2 marks b Why was the first son at first almost despairing? 2 marks How would you deseribe the first son from what he says? 2 marks Kenya Certificate of Secondary Education, 2019919240 10172o oOwy 919240 10 What is implied about the islanders who bought the cock? Illustrate your answer. G marks How do we know thatthe islanders were convinced thatthe cock was very precious? Marks Explain the meaning of the following metaphor: Here was a fine field for Puss. 2 marks What wo lessons do we lear from this story? Marks Kenya Certificate of Secondary Education, 2019101 72n4 Rewrite the following to remove ambiguity. 3 marks Juma told Ali that he lacked self-confidence. Gi Tsaw a monkey with a telescope. |
Marks Kenya Certificate of Secondary Education, 2019101 72n4 Rewrite the following to remove ambiguity. 3 marks Juma told Ali that he lacked self-confidence. Gi Tsaw a monkey with a telescope. Ii Look at that cow with one eye. B Choose the correct option from those given in brackets marks 0 My sister has five children and now she Wants 0 son. 8 Sixth one. Adapvadopt Te nirpag tie Mahoning secondary schoo wil be the guest of ii My father was sitting in the . Room when the guest arived. Leaving, living Complete the following using an appropriate preposition marks There is no exception...this rue, ii My friends congratulated me .........my recent achievement. Ii Kola has special liking Mathematis. Choose the best connector from those given in brackets. G marks She isa new employee; mummy She has done very well. Although even as nevertheless i My brother is very committed to his WOFK; .owsnn-y be has eared frequent promotions. Nonetheless notwithstanding consequently Gi Jason seems to be quite intelligent... ye often gets poor grades. Similarly however otherwise Kenya Certificate of Secondary Education, 2019919240 1012. Turn over 9192402Complete the following sentences by supplying the correct form of the verb given inbrackets. G marks i Hfthey had not .hhim money, he would not have gone for the trip. Sent send Gi Weare going to house for our mother. Build buil Git Let our clothes here.hang bung Kenya Certificate of Secondary Education, 201910172. |
For More Free KCSE past papers visit www.freekcsepastpapers.comK.C.S.E.CHEMISTRY PAPER 1 20121Charcoal is a fuel that is commonly used for cooking. When it burns it forms two oxides. A Name the two oxides. 2 marks b State one use of any of the two oxides. 1 mark 2 Iron III oxide was found to be contaminated with copper II sulphate. Describe howa pure sample of iron III oxide can be obtained. 3 marks 3In an experiment, dry hydrogen gas was passed over heated Lead II Oxide as shown inthediagram below. State and explain the observations made in the combustion tube. 3 marks 4.The table below shows properties of some elements A, B, C and D which belong tothe same period of the periodic table. The letters are not the actual symbols of theelements. ElementABcDMp C 141098-101660Atomic radii nm 0.1170.1860.0990.143ElectricalconductivityPoorGoodNonconductorsGood a Arrange the elements in the order they would appear in the period. Give a reason. 2 marks b Select the metallic element which is the better conductor of electricity. Give areason. For More Free KCSE past papers visit www.freekcsepastpapers.com 1 mark 5.A sample of water in a beaker was found to boil at 101.5 C at 1 atmospheric pressure. Assuming that the thermometer was not faulty, explain this observation. 1mark 6.Study the information in the table below and answer the questions that follow:SaltSolubility g 100gwater at 40 Cat 60 CCuSO42838Pb NQ3 27998A mixture containing 35g of CuS04 and 78g of Pb N03 2 in l00g of water at 60 C wascooledto 40 C. a Which salt crystallised out? Give a reason 2 marks b Calculate the mass of the salt that crystallised out. 1 mark 7.Ammonium ion has the following structure:Label on the structure: a covalent bond; 1 mark b coordinate dative bond. |
Give areason. For More Free KCSE past papers visit www.freekcsepastpapers.com 1 mark 5.A sample of water in a beaker was found to boil at 101.5 C at 1 atmospheric pressure. Assuming that the thermometer was not faulty, explain this observation. 1mark 6.Study the information in the table below and answer the questions that follow:SaltSolubility g 100gwater at 40 Cat 60 CCuSO42838Pb NQ3 27998A mixture containing 35g of CuS04 and 78g of Pb N03 2 in l00g of water at 60 C wascooledto 40 C. a Which salt crystallised out? Give a reason 2 marks b Calculate the mass of the salt that crystallised out. 1 mark 7.Ammonium ion has the following structure:Label on the structure: a covalent bond; 1 mark b coordinate dative bond. 1 mark 8.10cm3 of concentrated sulphuric VI acid was diluted to 100cm3. 10cm3 of the resultingsolution was neutralised by 36cm3 of 0.1M sodium hydroxide solution. Determine themass ofsulphuric VI acid that was in the concentrated acid S 32.0; H 1.0; O 16.0 . 3 marks For More Free KCSE past papers visit www.freekcsepastpapers.com9120g of iodine - 131 has a half life of 8 days and decays for 32 days. On the grid provided,plot a graph of the mass of iodine - 131 against time. 3 marks 10 a Name two cations that are present in hard water. 1 mark b Explain how the ion exchange resin softens hard water. 2 marks 11.The empirical formula of A is CH2Br. |
Determine themass ofsulphuric VI acid that was in the concentrated acid S 32.0; H 1.0; O 16.0 . 3 marks For More Free KCSE past papers visit www.freekcsepastpapers.com9120g of iodine - 131 has a half life of 8 days and decays for 32 days. On the grid provided,plot a graph of the mass of iodine - 131 against time. 3 marks 10 a Name two cations that are present in hard water. 1 mark b Explain how the ion exchange resin softens hard water. 2 marks 11.The empirical formula of A is CH2Br. Given that 0.470g of A occupies a volume of 56cm3at546K and 1 atmospheric pressure, determine its molecular formula. H 1.0, C 12.0, Br 80.0, molar gas volume at STP 22.4 dm3 . 3 marks For More Free KCSE past papers visit www.freekcsepastpapers.com12Study the flow chart below and answer the questions that follow. AmmoniaDryingHeatedgasagentblacksolidCoppermetalXNitrogen a Name a suitable drying agent for ammonia. 1 mark b Describe one chemical test for ammonia. 1 mark c Name X. 1 mark 13A dynamic equilibrium is established when hydrogen and carbon IV oxide react asshownbelow:H2 g C02 g H2O g CO g What is the effect of adding powdered iron catalyst on the position of the equilibrium?Give a reason. 2 marks 14Distinguish between ionisation energy and electron affinity of an element. 2marks 15 Below is a representation of an electrochemical cell. Pb s Pb2 aq Ag aq Ag s a What does represent? 1 mark b Given the following:EoVPb2 aq 2ePb s ; - 0.13Ag aq eAg s ; - 0.80Calculate the E.M.F of the electrochemical cell. 2 marks 16Use the following information on substances S, T, V and hydrogen to answer thequestionsthat follow:For More Free KCSE past papers visit www.freekcsepastpapers.com i T displaces V from a solution containing V ions. Ii Hydrogen reacts with the heated oxide of S but has no effect on heated oxide of V. |
On the grid provided,plot a graph of the mass of iodine - 131 against time. 3 marks 10 a Name two cations that are present in hard water. 1 mark b Explain how the ion exchange resin softens hard water. 2 marks 11.The empirical formula of A is CH2Br. Given that 0.470g of A occupies a volume of 56cm3at546K and 1 atmospheric pressure, determine its molecular formula. H 1.0, C 12.0, Br 80.0, molar gas volume at STP 22.4 dm3 . 3 marks For More Free KCSE past papers visit www.freekcsepastpapers.com12Study the flow chart below and answer the questions that follow. AmmoniaDryingHeatedgasagentblacksolidCoppermetalXNitrogen a Name a suitable drying agent for ammonia. 1 mark b Describe one chemical test for ammonia. 1 mark c Name X. 1 mark 13A dynamic equilibrium is established when hydrogen and carbon IV oxide react asshownbelow:H2 g C02 g H2O g CO g What is the effect of adding powdered iron catalyst on the position of the equilibrium?Give a reason. 2 marks 14Distinguish between ionisation energy and electron affinity of an element. 2marks 15 Below is a representation of an electrochemical cell. Pb s Pb2 aq Ag aq Ag s a What does represent? 1 mark b Given the following:EoVPb2 aq 2ePb s ; - 0.13Ag aq eAg s ; - 0.80Calculate the E.M.F of the electrochemical cell. 2 marks 16Use the following information on substances S, T, V and hydrogen to answer thequestionsthat follow:For More Free KCSE past papers visit www.freekcsepastpapers.com i T displaces V from a solution containing V ions. Ii Hydrogen reacts with the heated oxide of S but has no effect on heated oxide of V. a Arrange substances S, T, V and hydrogen in the order of increasing reactivity. 2 marks b If T and V are divalent metals, write an ionic equation for the reaction in i above. |
3 marks 10 a Name two cations that are present in hard water. 1 mark b Explain how the ion exchange resin softens hard water. 2 marks 11.The empirical formula of A is CH2Br. Given that 0.470g of A occupies a volume of 56cm3at546K and 1 atmospheric pressure, determine its molecular formula. H 1.0, C 12.0, Br 80.0, molar gas volume at STP 22.4 dm3 . 3 marks For More Free KCSE past papers visit www.freekcsepastpapers.com12Study the flow chart below and answer the questions that follow. AmmoniaDryingHeatedgasagentblacksolidCoppermetalXNitrogen a Name a suitable drying agent for ammonia. 1 mark b Describe one chemical test for ammonia. 1 mark c Name X. 1 mark 13A dynamic equilibrium is established when hydrogen and carbon IV oxide react asshownbelow:H2 g C02 g H2O g CO g What is the effect of adding powdered iron catalyst on the position of the equilibrium?Give a reason. 2 marks 14Distinguish between ionisation energy and electron affinity of an element. 2marks 15 Below is a representation of an electrochemical cell. Pb s Pb2 aq Ag aq Ag s a What does represent? 1 mark b Given the following:EoVPb2 aq 2ePb s ; - 0.13Ag aq eAg s ; - 0.80Calculate the E.M.F of the electrochemical cell. 2 marks 16Use the following information on substances S, T, V and hydrogen to answer thequestionsthat follow:For More Free KCSE past papers visit www.freekcsepastpapers.com i T displaces V from a solution containing V ions. Ii Hydrogen reacts with the heated oxide of S but has no effect on heated oxide of V. a Arrange substances S, T, V and hydrogen in the order of increasing reactivity. 2 marks b If T and V are divalent metals, write an ionic equation for the reaction in i above. 1mark 17Study the energy level diagram below and answer the questions that follow. |
Given that 0.470g of A occupies a volume of 56cm3at546K and 1 atmospheric pressure, determine its molecular formula. H 1.0, C 12.0, Br 80.0, molar gas volume at STP 22.4 dm3 . 3 marks For More Free KCSE past papers visit www.freekcsepastpapers.com12Study the flow chart below and answer the questions that follow. AmmoniaDryingHeatedgasagentblacksolidCoppermetalXNitrogen a Name a suitable drying agent for ammonia. 1 mark b Describe one chemical test for ammonia. 1 mark c Name X. 1 mark 13A dynamic equilibrium is established when hydrogen and carbon IV oxide react asshownbelow:H2 g C02 g H2O g CO g What is the effect of adding powdered iron catalyst on the position of the equilibrium?Give a reason. 2 marks 14Distinguish between ionisation energy and electron affinity of an element. 2marks 15 Below is a representation of an electrochemical cell. Pb s Pb2 aq Ag aq Ag s a What does represent? 1 mark b Given the following:EoVPb2 aq 2ePb s ; - 0.13Ag aq eAg s ; - 0.80Calculate the E.M.F of the electrochemical cell. 2 marks 16Use the following information on substances S, T, V and hydrogen to answer thequestionsthat follow:For More Free KCSE past papers visit www.freekcsepastpapers.com i T displaces V from a solution containing V ions. Ii Hydrogen reacts with the heated oxide of S but has no effect on heated oxide of V. a Arrange substances S, T, V and hydrogen in the order of increasing reactivity. 2 marks b If T and V are divalent metals, write an ionic equation for the reaction in i above. 1mark 17Study the energy level diagram below and answer the questions that follow. A Give the name of HA 1 mark b How can HB be reduced? |
A Arrange substances S, T, V and hydrogen in the order of increasing reactivity. 2 marks b If T and V are divalent metals, write an ionic equation for the reaction in i above. 1mark 17Study the energy level diagram below and answer the questions that follow. A Give the name of HA 1 mark b How can HB be reduced? Give a reason. 2 marks 18Acidified potassium manganate VII solution is decolourised when sulplur IV oxide isbubbled through it. The equation for the reaction is given below.2H2O 1 5S02 g 2KMnO4 aq K2SO4 aq 2MnSO4 aq 2H2SO4 aq a Which reactant is oxidised? Explain. 2 marks b Other than the manufacture of sulphuric VI acid, state one other use of sulphur IV For More Free KCSE past papers visit www.freekcsepastpapers.comoxide. 1 mark 19The set up shown below was used to investigate a property of hydrogen gas. State and explain the observation that would be made in the glass tube if beaker A wasfilledwith hydrogen gas. 3 marks 20Draw and name the isomers of pentane. 3 marks 21Give two uses of the polymer polystyrene. 1 mark 22Aluminium is both malleable and ductile, a What is meant by? I malleable; 1 mark ii ductible. 1 mark b State one use of aluminium based on: i malleability 1mark ii ductility 1mark For More Free KCSE past papers visit www.freekcsepastpapers.com23Describe how the percentage by mass of copper in copper carbonate can be determined. 3 marks 24The following set up of three test-tubes was used to investigate rusting of iron. |
Give a reason. 2 marks 18Acidified potassium manganate VII solution is decolourised when sulplur IV oxide isbubbled through it. The equation for the reaction is given below.2H2O 1 5S02 g 2KMnO4 aq K2SO4 aq 2MnSO4 aq 2H2SO4 aq a Which reactant is oxidised? Explain. 2 marks b Other than the manufacture of sulphuric VI acid, state one other use of sulphur IV For More Free KCSE past papers visit www.freekcsepastpapers.comoxide. 1 mark 19The set up shown below was used to investigate a property of hydrogen gas. State and explain the observation that would be made in the glass tube if beaker A wasfilledwith hydrogen gas. 3 marks 20Draw and name the isomers of pentane. 3 marks 21Give two uses of the polymer polystyrene. 1 mark 22Aluminium is both malleable and ductile, a What is meant by? I malleable; 1 mark ii ductible. 1 mark b State one use of aluminium based on: i malleability 1mark ii ductility 1mark For More Free KCSE past papers visit www.freekcsepastpapers.com23Describe how the percentage by mass of copper in copper carbonate can be determined. 3 marks 24The following set up of three test-tubes was used to investigate rusting of iron. Study itandanswer the questions that follow. A Give a reason why rusting did not occur in test-tube C. 1 mark b Aluminium is used to protect iron sheets from rusting. Explain two ways in which aluminium protects iron from rusting. 2 marks 25Describe how a solid sample of potassium sulphate can be prepared starting with200cm3 of2M potassium hydroxide. 3 marks 26Describe two chemical tests that can be used to distinguish ethanol from ethanoic acid. 3 marks 27 a The electronic arrangement of the ion of element Q is 2.8.8. |
The equation for the reaction is given below.2H2O 1 5S02 g 2KMnO4 aq K2SO4 aq 2MnSO4 aq 2H2SO4 aq a Which reactant is oxidised? Explain. 2 marks b Other than the manufacture of sulphuric VI acid, state one other use of sulphur IV For More Free KCSE past papers visit www.freekcsepastpapers.comoxide. 1 mark 19The set up shown below was used to investigate a property of hydrogen gas. State and explain the observation that would be made in the glass tube if beaker A wasfilledwith hydrogen gas. 3 marks 20Draw and name the isomers of pentane. 3 marks 21Give two uses of the polymer polystyrene. 1 mark 22Aluminium is both malleable and ductile, a What is meant by? I malleable; 1 mark ii ductible. 1 mark b State one use of aluminium based on: i malleability 1mark ii ductility 1mark For More Free KCSE past papers visit www.freekcsepastpapers.com23Describe how the percentage by mass of copper in copper carbonate can be determined. 3 marks 24The following set up of three test-tubes was used to investigate rusting of iron. Study itandanswer the questions that follow. A Give a reason why rusting did not occur in test-tube C. 1 mark b Aluminium is used to protect iron sheets from rusting. Explain two ways in which aluminium protects iron from rusting. 2 marks 25Describe how a solid sample of potassium sulphate can be prepared starting with200cm3 of2M potassium hydroxide. 3 marks 26Describe two chemical tests that can be used to distinguish ethanol from ethanoic acid. 3 marks 27 a The electronic arrangement of the ion of element Q is 2.8.8. If the formula of the ion isQ3,state the group and period to which Q belongs. Group: 1 2 mark Period: 1 2 mark For More Free KCSE past papers visit www.freekcsepastpapers.com b Helium, neon and argon belong to group 8 of the periodic table. |
Explain. 2 marks b Other than the manufacture of sulphuric VI acid, state one other use of sulphur IV For More Free KCSE past papers visit www.freekcsepastpapers.comoxide. 1 mark 19The set up shown below was used to investigate a property of hydrogen gas. State and explain the observation that would be made in the glass tube if beaker A wasfilledwith hydrogen gas. 3 marks 20Draw and name the isomers of pentane. 3 marks 21Give two uses of the polymer polystyrene. 1 mark 22Aluminium is both malleable and ductile, a What is meant by? I malleable; 1 mark ii ductible. 1 mark b State one use of aluminium based on: i malleability 1mark ii ductility 1mark For More Free KCSE past papers visit www.freekcsepastpapers.com23Describe how the percentage by mass of copper in copper carbonate can be determined. 3 marks 24The following set up of three test-tubes was used to investigate rusting of iron. Study itandanswer the questions that follow. A Give a reason why rusting did not occur in test-tube C. 1 mark b Aluminium is used to protect iron sheets from rusting. Explain two ways in which aluminium protects iron from rusting. 2 marks 25Describe how a solid sample of potassium sulphate can be prepared starting with200cm3 of2M potassium hydroxide. 3 marks 26Describe two chemical tests that can be used to distinguish ethanol from ethanoic acid. 3 marks 27 a The electronic arrangement of the ion of element Q is 2.8.8. If the formula of the ion isQ3,state the group and period to which Q belongs. Group: 1 2 mark Period: 1 2 mark For More Free KCSE past papers visit www.freekcsepastpapers.com b Helium, neon and argon belong to group 8 of the periodic table. Give: i the general name of these elements; 1 mark ii one use of these elements. 1 mark 28The apparatus shown in the diagram below were used to investigate the products formedwhen concentrated sodium chloride was electrolysed using inert electrodes. |
Study itandanswer the questions that follow. A Give a reason why rusting did not occur in test-tube C. 1 mark b Aluminium is used to protect iron sheets from rusting. Explain two ways in which aluminium protects iron from rusting. 2 marks 25Describe how a solid sample of potassium sulphate can be prepared starting with200cm3 of2M potassium hydroxide. 3 marks 26Describe two chemical tests that can be used to distinguish ethanol from ethanoic acid. 3 marks 27 a The electronic arrangement of the ion of element Q is 2.8.8.If the formula of the ion isQ3,state the group and period to which Q belongs. Group: 1 2 mark Period: 1 2 mark For More Free KCSE past papers visit www.freekcsepastpapers.com b Helium, neon and argon belong to group 8 of the periodic table. Give: i the general name of these elements; 1 mark ii one use of these elements. 1 mark 28The apparatus shown in the diagram below were used to investigate the products formedwhen concentrated sodium chloride was electrolysed using inert electrodes. A Write the equation for the reaction that takes place at electrode A. 1 mark b If the concentrated sodium chloride was replaced with dilute sodium chloride, whatproductwould be formed at electrode A?Explain. 2 marks 29.a State and explain what would happen if a dry blue litmus paper was dropped in a gas. 1mark b By using only dilute hydrochloric acid, describe how a student can distinguish betweenbarium sulphite from barium sulphate. 2marks For More Free KCSE past papers visit www.freekcsepastpapers.com. |
THE KENYA NATIONAL EXAMINATIONS COUNCILKenya Certificate of Secondary Education23 2 BIOLOGY Paper 2 THEORY Nov. 2019 - 2 hours Name Index Number ...Candidate's Signature Date ..Instructions to candidates a Write your name and iridex number in the spaces provided above. 0 Sign and write the date of examination in the spaces provided above. C This paper consists of two sections: A and B. d Answer allthe questions in section A in the spaces provided. 0 In section B answer question 6 leompulsory and either question 7 or 8 in the spaces providedafter question 8. F This paper consists of 12 printed pages. A Candidates should check the question paper to ascertain that all the pages are printed asIndicated and that no questions are missing. H Candidates should answer all the questions in English. For Examiners Use Onlym CanSection Question Maximum Candidates a 8 4 a2 e A 3 4 8 3 8. 6 2020 Total Score 80 2019 The Kenya National Examinations Council2312919303 Turn overSECTION A 40 marks Answer all the questions in this section n the spaces provided. . In an experiment to investigate the effect of sodium chloride on the growth rate ina spinachseedling, seeds were treated with different concentrations of sodium chloride, The results are asrecorded in the table below. Concentration of Percentage of spinach seeds Mean rootsodium chloride mol which started to grow roots Aength um 0.00 99.98 1730006 98.20 15.60018 380 1.6 From the results in th table above, explain the effect of increasing the concentration ofsodium chloride. Marks b Apart from a ruler, state two other equipment one would need to determine the rate of growth inthe roots. 2 marks With a reason, state one other part of the seedling the students would focus on todetermine the effect of sodium chloride on growth, 2 marks Kenya Certificate of Secondary Education, 2019919303, 23123 Sate the likely effect on the seedling of increasing the concentration of sodium chloride102.20moVI Umark 2. |
G marks Gi Explain the similarity inthe end results made in seediings If and Ill. 2 marks iil State the likely treatment that would make seedlings Il and IIL respond likeseedling I. 2 marks Kenya Certificate of Secondary Education, 2019919303 2324919303,sIn cats, the gene for fur colour is sex-linked. Letter G represents the gene for ginger fur colourwhile leer B represents the gene for black fur colour ina given cat species. These genes are codominant. Heterozygous females have ginger and black patches of fur and their phenotype is.described as tortose-shell, With reference tothe information given above, what is meant by the term codominance? U mark b Explain why male cats with a tortose-shell phenotype do not usually occur. 2 marks Atortoise-shell female was crossed with a black male. Determine the genotypes andphenotypes ofthe offspring, S marks Kenya Certificate of Secondary Education, 20192372 Turn over65, Apperson accidentally touches a hot pan and responds as illustrated inthe diagram below. Forearm 2 Explain how the response illustrated above occurs. 6 marks Explain how auxins are utilised as selective weed killers in agriculture. |
Determine the genotypes andphenotypes ofthe offspring, S marks Kenya Certificate of Secondary Education, 20192372 Turn over65, Apperson accidentally touches a hot pan and responds as illustrated inthe diagram below. Forearm 2 Explain how the response illustrated above occurs. 6 marks Explain how auxins are utilised as selective weed killers in agriculture. 2 marks Kenya Certificate of Secondary Education, 2019Bud919303,7 SECTION B 40 marks Answer question 6 compulsory and either question 7 or 8 in the spaces provided after question 8.6. The table below shows the rate of product formation for two enzymes, H and J over arange ofi values,pH 10 20 30 40 so 60Rat of product formationRatcot prover formation 345 405 335 150 Rate of formation Ratcofprodut maton 150 200 300 405 235 110 7.0 80 90 100 60 On the same axis, plot graphs of the rate of product formation against pH. 8 marks b Account for the rate of product formation for enzyme H between: pH 1.0and3.0G marks Kenya Certificate of Secondary919303, 212 Education, 2019 919303,Gi pH3.0and 7.0, marks From the graph, determine: i the pH value at which the rate of product formation of the two enzymes was thesame 1 mark ii the value of the rate of product formation for enzymes H and Jat the pH valuestated in c above i mark ii the optimum pH value for enzyme 3 mark State one variable that may lead to the change in the optimum rate of product-formationof the two enzymes. |
Forearm 2 Explain how the response illustrated above occurs. 6 marks Explain how auxins are utilised as selective weed killers in agriculture. 2 marks Kenya Certificate of Secondary Education, 2019Bud919303,7 SECTION B 40 marks Answer question 6 compulsory and either question 7 or 8 in the spaces provided after question 8.6. The table below shows the rate of product formation for two enzymes, H and J over arange ofi values,pH 10 20 30 40 so 60Rat of product formationRatcot prover formation 345 405 335 150 Rate of formation Ratcofprodut maton 150 200 300 405 235 110 7.0 80 90 100 60 On the same axis, plot graphs of the rate of product formation against pH. 8 marks b Account for the rate of product formation for enzyme H between: pH 1.0and3.0G marks Kenya Certificate of Secondary919303, 212 Education, 2019 919303,Gi pH3.0and 7.0, marks From the graph, determine: i the pH value at which the rate of product formation of the two enzymes was thesame 1 mark ii the value of the rate of product formation for enzymes H and Jat the pH valuestated in c above i mark ii the optimum pH value for enzyme 3 mark State one variable that may lead to the change in the optimum rate of product-formationof the two enzymes. 1 mar Suggest with a reason, the likely part of the human alimentary canal where enzyme H would be found, 2 marks Kenya Certificate of Secondary Education, 2019229193039Giving examples, describe the following interactions among organisms: predator-prey symbiosis parasitism, Explain the effect of increased physical activity on the following organ systems: heart lungs kidneys skin, Kenya Certificate of Secondary Education, 201923172 20 marks 20 marks Turn over. |
Figure Gooe oonat osot Tooot Toons eet Record the voltmeter reading E, when the crocodile clips are connected together a ots or Open the switch and separate the crocodile clips. Indicate by ticking below.the range ofthe vollmeter usedo-wv TJ o-sv GE onyGi Now connect the crocodile clips across resistance R 10000.Close the switchand record in table 2 the voltmeter reading V.Open the switch, Repeat the procedure in bi for other values of resistance R shown in the table Complete the table wi 2005306 7000 Grails onthe poi atte hot api arts Mr ur ae ota 0h wy page tL ais orm 705 the mile ofthe pags Determine the slope S ofthe graph.marks Daten he coment G gven that 5 mas From the graph determine mark Veuthe value of V when R 0o Ry the value of R when i Deemine Determine the slope ofthe graph ta pont X 52 em. F Determine the constant n given that n 525 Determine the constant given hat P You are provided with the following:voltmetertwo cells anda cell holder,swith,set of sx resistors each of resistance 10000.connecting wires,Determine the slope S ofthe graph. Determine the constant G given that G From the graph determine Vovthe value of V when R 0 Ny tenroth wim dae mark 1 mask Cm murks maria mares 2 marks 1 mark Umark More KCSE, KCPE, College and University Past Papers are available on http: www.kenyaplex.com. |
NameIndex Number101 2 Candidate s SignatureENGLISHPaper 2 Date.............................. Comprehension, Literary Appreciation and Grammar Nov. 20162Vi hoursTHE KENYA NATIONAL EXAMINATIONS COUNCIL Kenya Certificate of Secondary EducationENGLISH Paper 22 Vi hoursInstructions to candidates a Write your name and index number in the spaces provided above. B Sign and write the date of the examination in the spaces provided above. C Answer all the questions in this question paper. D All your answers must be written in the spaces provided in this question paper. E This paper consists of 12 printed pages. Candidates should check the question paper to ascertain that all the pages are printed as indicated and that no questions are missing. G Candidates must answer the questions in English. For Examiner s Use OnlyQuestionMaximumScoreCandidate sScore415Total Score 2016 The Kenya National Examinations Councilfor free past papers visit: www.freekcsepastpapers.com2I hate to tell you this, but your kid is spoiled. Mine aren t much better. That, in essence, is the finding of a recent media poll. Most of us think most of our kids are overindulged, materialistic brats. I bring this issue up to talk about a controversial study that deals with corporal punishment spanking - and it has outraged those who oppose the practice while rearming those who support it. Dr. Diana Baumrind studied 164 families from the time their children were in pre-school until they reached their 20s. She found that most families used some form of corporal punishment. She further found that, contrary to what we have been told for years, giving a child a mild spanking defined as open-handed swats on the backside, arm or legs does not leave the child scared for life. Baumrind makes a distinction between the minor punishments practiced by most parents who spank and the harsher variants practiced by a tiny minority shaking and blows to the head or face, for example .For my money, there was always something spurious about the orthodoxy that assured us all corporal punishment, regardless of severity, was de facto abuse. Nevertheless, we bought into it, with the result being that parents who admitted to spanking were treated as primitive dolts and heaped with scorn. They were encouraged to negotiate with misbehaving children in order to nurture their self esteem. But the orthodoxy was wrong on several fronts. |
She further found that, contrary to what we have been told for years, giving a child a mild spanking defined as open-handed swats on the backside, arm or legs does not leave the child scared for life. Baumrind makes a distinction between the minor punishments practiced by most parents who spank and the harsher variants practiced by a tiny minority shaking and blows to the head or face, for example .For my money, there was always something spurious about the orthodoxy that assured us all corporal punishment, regardless of severity, was de facto abuse. Nevertheless, we bought into it, with the result being that parents who admitted to spanking were treated as primitive dolts and heaped with scorn. They were encouraged to negotiate with misbehaving children in order to nurture their self esteem. But the orthodoxy was wrong on several fronts. In the first place, it is plainly ridiculous to equate a child who has been swatted on the butt with one who has been stomped, scalded or punched. In the second, the argument that reasonable corporal punishment leads inevitably to mental instability always seemed insupportable and has just been proved by Baumrind s study. Don t get me wrong, contrary to what its proponents sometimes claim, corporal punishment is not a panacea for misbehavior. Rearing a child requires not just discipline, but also humour, love and some luck. I have seen too many children behave with a sense of entitlement to believe it is. Heard too many teachers tell horror stories of dealing with kids from households where parents are not sovereign, adult authority not respected. So the pertinent question is not: to spank or not to spank? Rather, it is who s in charge here?Some folks think it s abuse when you swat a child s backside. But maybe, sometimes, it s abuse when you don t. Adapted from The Allyn Bacon Guide to Writing by John Ramage, John Bean and June Johnson. Boston: Longman, 2012 1 Read the passage below and then answer the questions that follow. 20 marks Kenva Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com3 a What does the author mean when he says most of us think most of our kids areoverindulged, materialistic brats . 2 marks b According to the author, what is the effect of mild punishment? |
Boston: Longman, 2012 1 Read the passage below and then answer the questions that follow. 20 marks Kenva Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com3 a What does the author mean when he says most of us think most of our kids areoverindulged, materialistic brats . 2 marks b According to the author, what is the effect of mild punishment? 2 marks c What is the controversy in the passage? 3 marks d What are the two major findings of Dr. Diana Baumrind s study? 2 marks e What is the author s personal view about corporal punishment? 4 marks Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com4 f Identify two other words that the author uses in the passage to mean mild corporalpunishment? 2 marks g Use two illustrations from the passage to explain the author s use of informal language. 3 marks h Explain the meaning of each of the following words as used in the passage. I materialistic 1 mark ii panacea 1 mark Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.comRead the excerpt below and then answer the questions that follow. 25 marks Brothers, people of Sakwa, we are pleased to welcome you to Yimbo. It is customary, because of the good dak between us, for you to marry our daughters and we yours. We are therefore more than neighbours, we have great wat between us because of the intermingling of blood though this has not occurred between our two lines so there is no danger of brother marrying sister - a great taboo. Since you are our brothers, we will not make things difficult for you. Here he stopped to take a sip of kong o and you could have heard the ants talk, so great was the silence. However, nobody was fooled by his sweet words. He continued, enjoying immensely the tension he was creating. Our daughter, Adoyo Obanda is a great beauty whose assets have been praised and sung by many a nyatiti singer from here to ChumbuKombit, from Sakwa to Loka Nam. |
Since you are our brothers, we will not make things difficult for you. Here he stopped to take a sip of kong o and you could have heard the ants talk, so great was the silence. However, nobody was fooled by his sweet words. He continued, enjoying immensely the tension he was creating. Our daughter, Adoyo Obanda is a great beauty whose assets have been praised and sung by many a nyatiti singer from here to ChumbuKombit, from Sakwa to Loka Nam. She is as fleet as a gazelle and her flying feet have been incorporated into the sayings of our village so that mothers sending their daughters on errands tell them to run like Adoyo of the flying feet. She has been carefully brought up and has been taught all the requirements of Chik. She is very apt pupil, and will therefore not bring shame and ruin to her husband by improper conduct. Her antecedents are peerless for she can trace her bloodline clear to Ramogi our great father and her blood is pure for we have always taken care to marry correctly. She is also the eldest daughter of our great chief, a man whose fame is known throughout this land. After careful consultation, we have therefore decided that thirty head of cattle should be the proper bride price. Was that an inaudible gasp from someone at the back? Chief Owuor Kembo signaled to his uncle and the old man spoke. Brothers, people of Yimbo, we have listened with great care to what you have to say. Since the contract of marriage is a matter of great import, we wish to beg leave to consult with each other outside before we return our verdict. Feel free to do so, Aloo said magnanimously. They moved some distance away and Akoko watching from her mother s kitchen thought amusedly to herself, I should ask father to give me a piece of land to settle on because at this rate I shall never leave his house. Adapted from The River and the Source by Margaret A. Ogola. Nairobi: Focus Publishers, 2012 a What reasons had the old man given that had prompted the need for Chief OwourKembo to urgently seek a wife? |
They moved some distance away and Akoko watching from her mother s kitchen thought amusedly to herself, I should ask father to give me a piece of land to settle on because at this rate I shall never leave his house. Adapted from The River and the Source by Margaret A. Ogola. Nairobi: Focus Publishers, 2012 a What reasons had the old man given that had prompted the need for Chief OwourKembo to urgently seek a wife? 3 marks Kenya Certificate of Secondary Education, 2016tni 7 Turnoverfor free past papers visit: www.freekcsepastpapers.com6 b It is customary, because of the good dak between us for you to marry our daughters and we yours. Identify two other customary practices on marriage in this community that are revealed in this excerpt. 2 marks c Explain the character traits of Chief Owuor Kembo and Aloo that emerge in this excerpt. 4 marks d What was the response of Chief Owuor Kembo s party on the bride price requested forby Aloo? 2 marks e In what circumstances was the thirty head of cattle referred to unfavourably later in the story when Akoko was married to Chief Owuor Kembo? 2 marks Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com I should ask father to give me a piece of land to settle on because at this rate I shall never leave his house. I Why did Akoko say these words? 2 marks ii What do Akoko s words reveal about Chief Odero s character? 2 marks Since the contract of marriage is a matter of great import, we wish to beg leave to consult with each other outside before we return our verdict. I What is your view on the success of Akoko and Chief Kembo s marriage? 2 marks ii Identify and comment on one marriage you consider successful in The River and the Source. 2 marks Feel free to do so, Aloo said magnanimously. Rewrite in indirect speech. |
2 marks Since the contract of marriage is a matter of great import, we wish to beg leave to consult with each other outside before we return our verdict. I What is your view on the success of Akoko and Chief Kembo s marriage? 2 marks ii Identify and comment on one marriage you consider successful in The River and the Source. 2 marks Feel free to do so, Aloo said magnanimously. Rewrite in indirect speech. 1 mark Kenya Certificate of Secondary Education, 2016 im ? Turn overfor free past papers visit: www.freekcsepastpapers.comExplain the meaning of the following words as used in the excerpt, i errands 1 mark ii apt 1 mark iii import 1 mark Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com9The Road Not TakenTwo roads diverged in a yellow wood,And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth;Then took the other, as just as fair,And having perhaps the better claim,Because it was grassy and wanted wear;Though as for that the passing there Had worn them really about the same,And both that morning equally lay In leaves no step had trodden black. Oh, I kept the first for another day!Yet knowing how way leads on to way,I doubted if I should ever come back. I shall be telling this with a sigh Somewhere ages and ages hence:Two roads diverged in a wood, and I - I took the one less travelled by,And that has made all the difference. By Robert Frost Adapted from Understanding Poetry by Jim Reeves London: Heinemann, 1965 3 Read the poem below and then answer the questions that follow. J t - r . A Explain the meaning of the poem. 4 marks b Explain the meaning of the line Yet knowing how way leads on to way. 2 marks Kenya Certificate of Secondary Education, 2016 ai6mi i m 2Turn overfor free past papers visit: www.freekcsepastpapers.comExplain the meaning of the following words as used in the excerpt, i errands 1 mark ii apt 1 mark iii import 1 mark Kenya Certificate of Secondary Education, 2016 101 2for free past papers visit: www.freekcsepastpapers.com9The Road Not TakenTwo roads diverged in a yellow wood,And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth;Then took the other, as just as fair,And having perhaps the better claim,Because it was grassy and wanted wear;Though as for that the passing there Had worn them really about the same,And both that morning equally lay In leaves no step had trodden black. Oh, I kept the first for another day!Yet knowing how way leads on to way,I doubted if I should ever come back. I shall be telling this with a sigh Somewhere ages and ages hence:Two roads diverged in a wood, and I - I took the one less travelled by,And that has made all the difference. By Robert Frost I! |
2 marks Feel free to do so, Aloo said magnanimously. Rewrite in indirect speech. 1 mark Kenya Certificate of Secondary Education, 2016 im ? Turn overfor free past papers visit: www.freekcsepastpapers.comExplain the meaning of the following words as used in the excerpt, i errands 1 mark ii apt 1 mark iii import 1 mark Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com9The Road Not TakenTwo roads diverged in a yellow wood,And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth;Then took the other, as just as fair,And having perhaps the better claim,Because it was grassy and wanted wear;Though as for that the passing there Had worn them really about the same,And both that morning equally lay In leaves no step had trodden black. Oh, I kept the first for another day!Yet knowing how way leads on to way,I doubted if I should ever come back. I shall be telling this with a sigh Somewhere ages and ages hence:Two roads diverged in a wood, and I - I took the one less travelled by,And that has made all the difference. By Robert Frost Adapted from Understanding Poetry by Jim Reeves London: Heinemann, 1965 3 Read the poem below and then answer the questions that follow. J t - r . A Explain the meaning of the poem. 4 marks b Explain the meaning of the line Yet knowing how way leads on to way. 2 marks Kenya Certificate of Secondary Education, 2016 ai6mi i m 2Turn overfor free past papers visit: www.freekcsepastpapers.comExplain the meaning of the following words as used in the excerpt, i errands 1 mark ii apt 1 mark iii import 1 mark Kenya Certificate of Secondary Education, 2016 101 2for free past papers visit: www.freekcsepastpapers.com9The Road Not TakenTwo roads diverged in a yellow wood,And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth;Then took the other, as just as fair,And having perhaps the better claim,Because it was grassy and wanted wear;Though as for that the passing there Had worn them really about the same,And both that morning equally lay In leaves no step had trodden black. Oh, I kept the first for another day!Yet knowing how way leads on to way,I doubted if I should ever come back. I shall be telling this with a sigh Somewhere ages and ages hence:Two roads diverged in a wood, and I - I took the one less travelled by,And that has made all the difference. By Robert Frost I! IM Adapted from Understanding Poetry by Jim Reeves London: Heinemann, 1965 3 Read the poem below and then answer the questions that follow. A Explain the meaning of the poem. 4 marks b Explain the meaning of the line Yet knowing how way leads on to way. 2 marks r 1 c r 1 1Kenya Certificate of Secondary Education, 2016m m Turnoverfor free past papers visit: www.freekcsepastpapers.com10 c Identify and explain the use of symbolism in the poem. |
Rewrite in indirect speech. 1 mark Kenya Certificate of Secondary Education, 2016 im ? Turn overfor free past papers visit: www.freekcsepastpapers.comExplain the meaning of the following words as used in the excerpt, i errands 1 mark ii apt 1 mark iii import 1 mark Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com9The Road Not TakenTwo roads diverged in a yellow wood,And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth;Then took the other, as just as fair,And having perhaps the better claim,Because it was grassy and wanted wear;Though as for that the passing there Had worn them really about the same,And both that morning equally lay In leaves no step had trodden black. Oh, I kept the first for another day!Yet knowing how way leads on to way,I doubted if I should ever come back. I shall be telling this with a sigh Somewhere ages and ages hence:Two roads diverged in a wood, and I - I took the one less travelled by,And that has made all the difference. By Robert Frost Adapted from Understanding Poetry by Jim Reeves London: Heinemann, 1965 3 Read the poem below and then answer the questions that follow. J t - r . A Explain the meaning of the poem. 4 marks b Explain the meaning of the line Yet knowing how way leads on to way. 2 marks Kenya Certificate of Secondary Education, 2016 ai6mi i m 2Turn overfor free past papers visit: www.freekcsepastpapers.comExplain the meaning of the following words as used in the excerpt, i errands 1 mark ii apt 1 mark iii import 1 mark Kenya Certificate of Secondary Education, 2016 101 2for free past papers visit: www.freekcsepastpapers.com9The Road Not TakenTwo roads diverged in a yellow wood,And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth;Then took the other, as just as fair,And having perhaps the better claim,Because it was grassy and wanted wear;Though as for that the passing there Had worn them really about the same,And both that morning equally lay In leaves no step had trodden black. Oh, I kept the first for another day!Yet knowing how way leads on to way,I doubted if I should ever come back. I shall be telling this with a sigh Somewhere ages and ages hence:Two roads diverged in a wood, and I - I took the one less travelled by,And that has made all the difference. By Robert Frost I! IM Adapted from Understanding Poetry by Jim Reeves London: Heinemann, 1965 3 Read the poem below and then answer the questions that follow. A Explain the meaning of the poem. 4 marks b Explain the meaning of the line Yet knowing how way leads on to way. 2 marks r 1 c r 1 1Kenya Certificate of Secondary Education, 2016m m Turnoverfor free past papers visit: www.freekcsepastpapers.com10 c Identify and explain the use of symbolism in the poem. 3 marks d What does the poet means when he says that I took the one less travelled by ? |
1 mark Kenya Certificate of Secondary Education, 2016 im ? Turn overfor free past papers visit: www.freekcsepastpapers.comExplain the meaning of the following words as used in the excerpt, i errands 1 mark ii apt 1 mark iii import 1 mark Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com9The Road Not TakenTwo roads diverged in a yellow wood,And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth;Then took the other, as just as fair,And having perhaps the better claim,Because it was grassy and wanted wear;Though as for that the passing there Had worn them really about the same,And both that morning equally lay In leaves no step had trodden black. Oh, I kept the first for another day!Yet knowing how way leads on to way,I doubted if I should ever come back. I shall be telling this with a sigh Somewhere ages and ages hence:Two roads diverged in a wood, and I - I took the one less travelled by,And that has made all the difference. By Robert Frost Adapted from Understanding Poetry by Jim Reeves London: Heinemann, 1965 3 Read the poem below and then answer the questions that follow. J t - r . A Explain the meaning of the poem. 4 marks b Explain the meaning of the line Yet knowing how way leads on to way. 2 marks Kenya Certificate of Secondary Education, 2016 ai6mi i m 2Turn overfor free past papers visit: www.freekcsepastpapers.comExplain the meaning of the following words as used in the excerpt, i errands 1 mark ii apt 1 mark iii import 1 mark Kenya Certificate of Secondary Education, 2016 101 2for free past papers visit: www.freekcsepastpapers.com9The Road Not TakenTwo roads diverged in a yellow wood,And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth;Then took the other, as just as fair,And having perhaps the better claim,Because it was grassy and wanted wear;Though as for that the passing there Had worn them really about the same,And both that morning equally lay In leaves no step had trodden black. Oh, I kept the first for another day!Yet knowing how way leads on to way,I doubted if I should ever come back. I shall be telling this with a sigh Somewhere ages and ages hence:Two roads diverged in a wood, and I - I took the one less travelled by,And that has made all the difference. By Robert Frost I! IM Adapted from Understanding Poetry by Jim Reeves London: Heinemann, 1965 3 Read the poem below and then answer the questions that follow. A Explain the meaning of the poem. 4 marks b Explain the meaning of the line Yet knowing how way leads on to way. 2 marks r 1 c r 1 1Kenya Certificate of Secondary Education, 2016m m Turnoverfor free past papers visit: www.freekcsepastpapers.com10 c Identify and explain the use of symbolism in the poem. 3 marks d What does the poet means when he says that I took the one less travelled by ? 3 marks e What does the poem reveal about the character of the persona? |
IM Adapted from Understanding Poetry by Jim Reeves London: Heinemann, 1965 3 Read the poem below and then answer the questions that follow. A Explain the meaning of the poem. 4 marks b Explain the meaning of the line Yet knowing how way leads on to way. 2 marks r 1 c r 1 1Kenya Certificate of Secondary Education, 2016m m Turnoverfor free past papers visit: www.freekcsepastpapers.com10 c Identify and explain the use of symbolism in the poem. 3 marks d What does the poet means when he says that I took the one less travelled by ? 3 marks e What does the poem reveal about the character of the persona? 3 marks f What is the tone of the poem? 3 marks g Explain the meaning of the following words as used in the poem. I diverged 1 mark ii sigh 1 mark Kenya Certificate of Secondary Education, 20167 1 7 n 1 S f i 1for free past papers visit: www.freekcsepastpapers.com114 a Rewrite each of the sentences below to make it communicate more sensibly. 3 marks i Powerful and comfortable the buyer really liked the car. Ii They left the field full of sweat. Iii Mukasa loves growing vegetables. B Insert the correct punctuation marks in the sentences given. 4 marks i Whose responsibility is it to see whether this machine is working ii My one big question however is what you do with your free time iii Amazing That was the best party I have attended in years. Iv Please tell me the way to the police station c Complete each of the following sentences using the correct phrasal verb formed from theword given in brackets. 4 marks i Kimeto................................of the marathon race due to fatigue, pull ii The local council fire brigade........................the fire after many hours, put iii It is clear from her looks that Claire................................her mother, take iv The youth should.............................................to adults for guidance, look Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com d Rewrite the following sentences according to the instructions after each. |
3 marks i Powerful and comfortable the buyer really liked the car. Ii They left the field full of sweat. Iii Mukasa loves growing vegetables. B Insert the correct punctuation marks in the sentences given. 4 marks i Whose responsibility is it to see whether this machine is working ii My one big question however is what you do with your free time iii Amazing That was the best party I have attended in years. Iv Please tell me the way to the police station c Complete each of the following sentences using the correct phrasal verb formed from theword given in brackets. 4 marks i Kimeto................................of the marathon race due to fatigue, pull ii The local council fire brigade........................the fire after many hours, put iii It is clear from her looks that Claire................................her mother, take iv The youth should.............................................to adults for guidance, look Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com d Rewrite the following sentences according to the instructions after each. 4 marks i It was tough but we eventually made it up the mountain. Begin: Tough..... ii Rashidi said that he had not insulted me. Use.......denied..... iii She is busy renovating her house so that she may rent it out. Rewrite using: with a view iv Mshamba will not at any cost support your cause. Begin: A t..... THIS IS THE LAST PRINTED PAGE.Kenya Certificate of Secondary Education, 2016for free past papers visit: www.freekcsepastpapers.com. |
Www.freekcsepastpapers.comPage 289 IMENTI SOUTH EXAMINATION, 2023 Kenya Certificate of Secondary Education 232 1 PHYSICS PAPER 1 TIME: 2 Hours SECTION A: 25 marks Answer all the questions in this section 1.The figure below shows a section of a tape measure used for measuring the circumference of a cylindrical watertank.i State the accuracy of the tape. 1 mark ii Determine the diameter of the tank. 2 marks 2.A student carried out an experiment and recorded the following measurementsHeight of the rod 160cm Length of the shadow of flag post 1400cm Length of the shadow of rod 140cm Use the above measurements to estimate the height of the flag post. 3 marks 3.Sketch a displacement time graph for a body moving with a uniform velocity. 2 marks 4.A student wearing a sharp pointed shoe is likely to damage a soft wooden floor. Explain. 2 marks 5.The figure below shows a simple apparatus for demonstrating expansion in solids. It consists of a metal ball thatjust slips through the metal ring when both are at room temperature. Wooden handleMetal ballMetal ringExplain how the apparatus can be used to show that solids expand when heated. 3 marks 6.The figure below shows a solid marble in a stable equilibrium. On the space provided sketch the same marble in aneutral state of equilibrium. 1 mark MarbleBowlSupport7.a State the Bernoulli s principle. 1 mark b The figure below shows a Bunsen burner. String 90 1m 2m 10 20 30 40 50 60 70 80 90 10 20 30 40 50 60www.freekcsepastpapers.com Page 291 14. The diagram below shows a set up that a student used to investigate the pressure law. HeatDry airGlass flaskStirrerYXHot water a Name the parts X 1 mark Y 1 mark b What are the functions of i The stirrer 1 mark ii Part Y 1 mark c State the measurements that should be taken in the experiment. 2 marks d Explain how the measurement in c above may be used to verify pressure law. |
1. The diagram below shows a motorist looking into his driving mirror. Mirror i Mark on the diagram: Letter I to show the incident ray and letter r to show the angle of reflection. 2 marks ii Name the dotted line shown in the diagram. 1 mark 2. A pendulum bob takes 0.05 seconds to move from its mean position to maximum displacement. Calculate its frequency. 2 marks 3. Describe how you would charge a gold leaf electroscope by induction method. 2 marks 4. State any two maintenance practices for accumulators. 2 marks 5. A man standing at the middle of two parallel walls fires a gun. He hears an echo after 1.5 seconds. Determine the distance of separation of the walls. Velocity of sound is 340 m s 3 marks 6. The figure below shows a candle flame being deflected by a positively charged sharp wire brought near it. Vely charged wireDeflected candle flame Explain the observation. 2 marks 7. The figure below shows part of electric cooker coil. Y i Why is the material labelled Y coiled? 1 mark ii State the property of material Y that makes it suitable for its use. 1 mark www.freekcsepastpapers.com Page 293 8. The figure below shows part of a rainbow. AB State what happens at part A 1 mark B 1 mark 9. One method of magnetization is by single stroking. State the disadvantage of this method. 1 mark 10. The figure below shows human eye with a defect. ImageEye ballEye lensObject i Identify the defect. 1 mark ii State one possible cause of the defect. 1 mark iii Identify the lens used to correct the defect. 1 mark 11. The sketch below shows an object placed some distance from a biconcave lens. FObject Draw rays to locate the image on the diagram. 3 marks SECTION B 55 MARKS Answer All questions 12. A The figure below shows a simple electric bell circuit. XGongHammerYZSpringSwitchwww.freekcsepastpapers.com Page 294 i Name the parts labelled X, Y, Z 3 marks ii When the switch is closed, the hammer hits the gong repeatedly. Explain why: I. |
A The figure below shows a simple electric bell circuit. XGongHammerYZSpringSwitchwww.freekcsepastpapers.com Page 294 i Name the parts labelled X, Y, Z 3 marks ii When the switch is closed, the hammer hits the gong repeatedly. Explain why: I. The hammer hits the gong. 2 marks II. The hammer hits the gong repeatedly. 2 marks iii State and explain what would happen if the armature is made of steel metal. 2 marks iv What adjustment should be done to the system to make it operate effectively with a lower voltage battery? 1 mark 13. A State one use of echoes. 1 mark b i Explain why there is gradual decrease in amplitude of a progressive wave. 1 mark ii Distinguish between refraction and reflection of waves. 1 mark iii In the figure below complete the diagram to show how plane wave move in the shallow and deep region below. 2 marks DeepShallowDeep iv The figure below shows how water waves interfere in a ripple tank. The amplitude and wavelength of each wave is 8cm and 5 cm respectively. ABCDOS15cm5cmS2 Determine the amplitude of the water wave at: A 1 mark B 1 mark v If the vibrator S1 and S2 in part iv above produces coherent waves at a frequency of 40Hz, determine the speed of water wave. 2 marks c A radio station transmits a wave frequency of 120MHz. Calculate i The wavelength of the transmitted waves. 2 marks ii Time taken for the waves to travel a distance of 50km. 2 marks 14. The figure below shows a simple circuit consisting of resistor networks and a power source of internal resistance of 0.6 ohms a Calculate i The total effective resistance. 3 marks ii Current flowing through the 3 resistor. 3 marks 6 1 3 12V, 0.6 www.freekcsepastpapers.com Page 295 b Two capacitors of values 3 F and 6 F connected in series to a 120V d.c supply as shown below. I Calculate the total energy stored in the capacitor. |
3 marks ii Current flowing through the 3 resistor. 3 marks 6 1 3 12V, 0.6 www.freekcsepastpapers.com Page 295 b Two capacitors of values 3 F and 6 F connected in series to a 120V d.c supply as shown below. I Calculate the total energy stored in the capacitor. 3 marks ii The capacitors are then reconnected in parallel. Determine I. Potential difference across each capacitor. 1 mark II. Total energy stored in both capacitors. 3 marks iii Comment of the energy difference in I and II above. 3 marks 15. A State the Snell s law of refraction. 1 mark b In an experiment to determine refractive index of a liquid, the liquid was poured into a measuring cylinder, a pin was placed at the bottom of the cylinder and another pin was used to locate the apparent position of the first pin. The values of real and apparent depth were used to plot a graph as shown below. I From the graph determine the refractive index of the liquid. 3 marks ii Given that the velocity of light in vacuum is 3.0 x 108m s, what would be the velocity of light in the liquid above? 3 marks 16. A i Define the term principal focus as used in convex lens. 1 mark ii State two differences between the human eye and camera 2 marks b An object is placed 20cm in front of a concave lens of focal length 16cm. Determine i The image distance from the lens. 3 marks ii The magnification. 3 marks 6 F 3 Fwww.freekcsepastpapers.com Page 296 IMENTI SOUTH EXAMINATION, 2023 Kenya Certificate of Secondary Education 232 3 PHYSICS PAPER 3 PRACTICAL TIME: 2 HOURS QUESTION ONE You are provided with the following A concave lens A lit candle A white screen A lens holder A metre rule Procedure a Set the apparatus as shown below. B Place a lit candle at object distance u 20cm. |
3 marks ii The magnification. 3 marks 6 F 3 Fwww.freekcsepastpapers.com Page 296 IMENTI SOUTH EXAMINATION, 2023 Kenya Certificate of Secondary Education 232 3 PHYSICS PAPER 3 PRACTICAL TIME: 2 HOURS QUESTION ONE You are provided with the following A concave lens A lit candle A white screen A lens holder A metre rule Procedure a Set the apparatus as shown below. B Place a lit candle at object distance u 20cm. Move the screen towards or away from the lens until a sharp image of the candle flame is obtained on the screen. Measure the distance V and record the results in the table. C Repeat the same for other values of U as shown in the table and fill their respective values of V. Object distance U cm Image distance V cm U V cm UV cm2 20 30 45 60 75 90 5 marks d Plot a graph of UV cm2 against U V cm on the grid provided. 5 marks e Determine the slope of the graph. 2 marks f Determine the power of the lens used in the experiment. 2 marks QUESTION TWO You are provided with the following 2 new dry cells A cell holder Switch A resistance wire mounted on a mm scale Six connecting wires each with a crocodile clip at one end An ammeter A voltmeter Micrometer screw gauge Procedure a Measure the diameter of the mounted wire at two distinct points. D1 mm mark d2 mm mark Average diameter 1 mark U cm V cm Convex lens White screen Candlewww.freekcsepastpapers.com Page 297 b Connect the circuit as shown below. VA i Close the switch and measure the p.d, Vo across the 1M length of resistance wire and current Io. Vo V 1 mark Io A 1 mark ii Calculate the resistance Ro of the wire. 2 marks iii Calculate the cross-section area A of the wire in S.I units. |
All working must be clearly shown. Electronic calculators, mathematical tables may be used. All numerical answers should be expressed in the decimal notations. You may use g as 10m s2 SECTION A 25 MARKS 1. Figure 1, shows a Vernier caliper of zero error 0.02 cm being used for measuring the diameter of a cylindrical container of height 10 cm. The scale reading of the Vernier is as shown alongside. A. Determine the diameter of the container 2 marks b. Estimate the volume of a liquid which can completely fill the container 2 marks 2. State one factor that affects the turning effect of a force on a body. 1 mark 3. Figure 2 shows some air trapped by mercury in a glass tube. The tube is inverted in a dish containing mercury. Given that the atmospheric pressure is 760 mmHg and the height of mercury column in the tube is 600 mm, determine the pressure of the air trapped in the tube in mmHg. 2 marks 4. Figure 3 shows drops of mercury and water on a glass surface, Explain the difference in the shapes of the drops. 2marks Figure 1 5. A ball is thrown from the top of a cliff 20m high with a horizontal velocity of 10ms-1. Calculate the distance from the foot of the cliff to where the ball strikes the ground. 3 marks Mercury Water Glass surfacewww.freekcsepastpapers.comPage 271 A B thread 6. Explain one advantage of mercury over alcohol as a thermometric liquid. 1mark 7. A body of mass M is allowed to slide down an inclined plane. State two factors that affect its final velocity at the bottom of the inclined plane. 2marks 8. A stopwatch reads 08:10:84 and 09:10: 90 before and after an experiment respectively. Determine the duration of the event in SI units. 2marks 9. Explain the meaning of thermodynamics as a branch of physics. 1 mark 10. A. State the Hooke s Law. 1mark b. Figure 4 shows identical spiral springs supporting a load of 90N. |
State the Hooke s Law. 1mark b. Figure 4 shows identical spiral springs supporting a load of 90N. Each spring has a spring constant k 200N m 90Nsprings Determine the total extension of the system take the weight of the cross bars and springs to be negligible 2 marks 11. Figure 5 shows a rectangular loop with a thin thread loosely tied and dipped into a soap solution. Draw on the space provided what is observed when point A is punctured. 1mark 12. Two horizontal strings are attached to a block, resting on a frictionless surface, as shown in figure 6. A force of 100N pulls on one string. The block does not move. Find the value of the force, F on the other string. 1 mark 13. A wooden bench feels neither warm nor cold when touched by your bare hands. Explain this observation. 2 marks F 100 N supportwww.freekcsepastpapers.comPage 272 SECTION B 55 MARKS 14. A State the principle of conservation of linear momentum. 1 mark b Distinguish between elastic and inelastic collision. 1 mark c A striker kicks a ball of mass 200g initially at rest with a force of 78N.Given that the foot was in contact with the ball for 0.30s; determine the takeoff velocity of the ball. 3 marks d A high jumper usually lands on thick soft mattress. Explain how the mattress helps in reducing the force of impact. 2 marks e A ball is thrown horizontally from the top of a vertical tower of height 75m and strikes the ground at a point 80m from the bottom of the tower. Determine the: i Time taken by the ball to hit the ground. Acceleration due to gravity 10m s2 3 marks ii Initial horizontal velocity of the ball. 3 marks 15. A State two factors that affect the boiling point of a liquid 2 marks b 100g of a liquid at a temperature of 100 C is poured into a well lagged calorimeter. An electric heater rated 50W is used to heat the liquid. The graph in figure 7 shows the variation of the temperature of the liquid with time. |
Take: Speed of light in vacuum C 3.0 x 108m s Acceleration due to gravity g 10N S2 SECTION A 25 MARKS Answer all the questions in the spaces provided. 1. Figure 1 below shows a ray of light incident to the first of the two mirrors placed at an angle of 600 fig 1 Complete the path of the ray after reflection from the mirrors. 1mk 2. Figure 2 below shows a positive charge near a plate carrying negative charge. Fig 2 Draw the electric field between them. 2mks 3. Two pins are hanging from a magnet as shown in the diagram below figure 3 fig 3 Explain why they do not hang vertically downwards. 2mks 4. Draw the diagrams to illustrate what happens when plane waves are incident on a slit. I When the width of the slit is large compared with the wavelengths of the waves. 2mks ii When the width of the slit is small compared with wavelength of the waves. 2mks 5. What energy conversion occurs in a photocell? 1mk 6. I Arrange the following waves in order of decreasing wavelength; infrared, X-rays, micro-waves and visible light 1mk ii State one application of visible light. 1mk 7. State two advantages of an alkaline battery over lead acid battery. 2mks 8. A girl shouts and ears an echo after 0.6 seconds later from a cliff. If velocity of sound is 330m s, calculate the distance between her and the cliff. 3mks 9. What is dispersion of light? 1mk www.freekcsepastpapers.comPage 275 10. Determine the reading of an ammeter in figure 4 below 2mks fig 4 11. A ray of light is incident on a glass oil interface as shown in figure 5 below. Determine the value of r Take refractive index of glass and oil as 3 2 and 6 3 respectively 3mks fig 5 12. State two factors that affect the capacitance of a parallel plate capacitors. 2mks SECTION B 55 MARKS 13. A State Ohm s law. |
2mks b A ray of light traveling in the direction EO in air enters a rectangular block as shown in the diagram. The resulting angle of refraction is 18 . Find: i The refractive index of the block. 2mks ii The critical angle C of the block. 3mks 16. A The figure below shows an object in front of lens. I Using rays locate the image as seen by observer, E. 2 mks ii Give one application of such a lens as used above. 1 mk 18o Cwww.freekcsepastpapers.comPage 277 b Figure below shows a diagram of the human eye. Sketch a ray diagram showing how lens is used to correct long sightedness. 2 mks c An object of height 10.5cm stands before a diverging lens of focal length 20cm and a distance of 10cm from the lens. Determine; i image distance. 3 mks ii height of the image. 3mk iii magnification. 2 mk 17. A State the Lenz s law of electromagnetic induction. 1 mk b A bar magnet is moved into a coil of an insulated copper wire connected to a zero centre galvanometer as shown below i Show on the figure above the direction of the induced current in the coil 1 mark ii State and explain what is observed on the galvanometer when the south pole of the magnet is moved into and then withdrawn from the coil. 2 marks c A transformer has 800 turns in the primary and 40 turns in the secondary winding. The alternating voltage connected to the primary is 240V and current of 0.5.A. If 10 of the power is dissipated as heat within the transformer, determine the current in the secondary coil. |
2 marks c A transformer has 800 turns in the primary and 40 turns in the secondary winding. The alternating voltage connected to the primary is 240V and current of 0.5.A. If 10 of the power is dissipated as heat within the transformer, determine the current in the secondary coil. 3 marks N Gwww.freekcsepastpapers.comPage 278 CHOGORIA - MURUGI JOINT EXAMINATION, 2023 Kenya Certificate to Secondary Education 232 3 PHYSICS PAPER 3 CONFIDENTIAL Question 1 Each candidate to have the following apparatus 2 new dry cells Cell holder Ammeter 0-1A Voltmeter 6 connecting wires at least 3 with crocodile clips Nichrome wire SWG 28 d 0.38mm mounted on a mm scale with the ends labeled A and B A switch Micrometer screw gauge may be shared Jockey key. Question 2 PART A Each candidate to have the following apparatus Retort stand, clamp and boss A piece of thread 1.2 metre Two small pieces of wood blocks Pendulum bob Meter rule Stop watch PART B Each candidate to have the following apparatus A concave mirror Focal length 16 cm Mirror holder White screen Metre rule A candlewww.freekcsepastpapers.comPage 279 CHOGORIA -MURUGI JOINT EXAMINATION, 2023 Kenya Certificate to Secondary Education 232 3 PHYSICS Paper 3 Practical TIME: 2 HRS Answer all the questions. You are supposed to spend the first 15 minutes of the 2 hours allowed for this paper reading the whole paper carefully before your start. QUESTION ONE. You are provided with the following; 2 new dry cells Cell holder Ammeter 0-1A Voltmeter 6 connecting wires at least 3 with crocodile clips Nichrome wire mounted on millimeter scale Micrometer screw gauge may be shared Jockey. Proceed as follows; a Using micrometer screw gauge, measure the diameter, D of the nichrome wire. |
QUESTION ONE. You are provided with the following; 2 new dry cells Cell holder Ammeter 0-1A Voltmeter 6 connecting wires at least 3 with crocodile clips Nichrome wire mounted on millimeter scale Micrometer screw gauge may be shared Jockey. Proceed as follows; a Using micrometer screw gauge, measure the diameter, D of the nichrome wire. I D mm ii D m 1mark iii The cross sectional area A is obtained by; 2 Where r D 2 Determine the cross sectional area A in SI units. 2marks b Set up the apparatus as shown below. C Record the e.m.f across the terminals of the dry cells when the switch is open. Emf d Adjust the position of jockey key such that length AX 10cm. Close the switch and record the voltmeter and ammeter reading on the table given. E Repeat step d above for the other lengths shown on the table. Www.freekcsepastpapers.comPage 280 f Complete the table. 5 marks Length, L AX cm 10 20 30 50 70 80 Voltage V Current A Resistance V I g Plot a graph of resistance against Length cm on the graph provided below. 5 marks h i Determine the slope of your graph. 3marks ii The relationship between L and R is given by the equation; , determine the value of . 2marks iii Suggest what constant represents. 1mark QUESTION TWO A You are provided with the following apparatus; Retort stand, clamp and boss A piece of thread Two small pieces of wood blocks Pendulum bob Meter rule Stop watch Procedure; Tie the bob to one end 20cm length of the thread and suspend it from the retort stand with the help of the wooden blocks as shown in the diagram. Displace the bob by a small angle say 100; start the stopwatch simultaneously and allow it to swing to make ten oscillations. |
When an inflated balloon is placed in a refrigerator, it is noted that its volume reduces. Use kinetic theory to explain this observation 2 marks 7. The figure below shows a solid just before being released into a liquid of the same density as the solid. On the same diagram draw the observation made when the solid is released 1 mark 8. The figure below shows a glass tumbler partly filled with water at room temperature. Briefly explain what happens to the stability of the tumbler when the water is heated 2 marks 9. The figure below shows some air trapped in a glass tube, the tube is inverted in a dish containing mercury. Given that the atmospheric pressure is 760 mmHg and the height of mercury column in the glass is 550 mm determine the pressure of the air trapped in the tube in mm Hg. 2 marks www.freekcsepastpapers.comPage 251 10. The figure below shows a hydraulic machine in equilibrium while supporting a load when a force of 100N is applied one of the pistons. The cross-section area of the pistons are as shown. Determine the weight of the load 3 marks 11. A metal ball suspended vertically with a light string of length 4m is displaced through an angle as shown in the diagram below. The body is released from A and swings past the lowest point B. Given that its velocity at point B is 4 m s, determine angle 3 marks 12. The figure below shows a uniform bar balanced by forces F1 and F2. Determine the value of F1 3 marks SECTION B 55 MARKS Answer ALL the questions in the spaces provided 13. A An object of mass 50g is dropped from a height of 80m to hit the ground below i For the motion, on the same axes, sketch and label the graphs of : 3 marks I. Kinetic energy against time II. Potential energy against time ii Determine how long it takes to reach the ground 2 marks iii Determine the momentum as it hits the ground 3 marks b Engine oil licks on the ground from a lorry as it decelerates uphill. The oil drops are shown below as black dots. The time between any two drops is constant at 2sec. I. On the same diagram indicate the direction of the lorry with an arrow. 1 mark ii. |
I. On the same diagram indicate the direction of the lorry with an arrow. 1 mark ii. Determine the acceleration of the deceleration of the lorry. 3 marks www.freekcsepastpapers.comPage 252 14. The figure below shows a system used to lift a septic slab of weight 150N by applying a force of 50N on a light bar as shown. The radii of the pulley belt wheels are as indicated in the diagram Determine a. Tension T of the vertical string 3 marks b. MA of the system 2 marks c. VR of the system 3 marks d. Efficiency of the system 2 marks 15. A State three factors that affect the toughness of a spring 3 marks b When a mass of 120g is applied to a spring the pointer reads 6cm. A pan, in which a mass of 210g is placed, is now suspended from the spring and the pointer reads 14cm. When the 210g mass is removed from the pan the pointer reads 4cm. I. Draw a diagram or diagrams to represent the information above 1 mark ii. Determine the mass of the pan. 3 marks c The figure below shows a mass 200g placed on a frictionless surface and attached to a spring. The spring is compressed and released. Given that the elastic potential energy of the compressors spring is 2.7x10 2J. Determine the maximum speed with which the blocks moves after released. 3 marks 16. The sphere below has a volume of 0.1 litres. It is held with a tight string at the base with of its volume in liquid A of density 380kg m3 while the rest is in Liquid B of density 700kg m3. The tension of the string is 0.32N. www.freekcsepastpapers.comPage 253 Find: a. Mass of liquid A displaced 2 marks b. Mass of liquid B displaced 2 marks c. Upthrust experienced by the sphere 2 marks d. Mass of the sphere 3 marks e. Density of the sphere 3 marks 17. A girl joins two 20g masses A and B on a string and whirls them in a vertical circle Centre O of radius 50cm as shown below. |
Mass of the sphere 3 marks e. Density of the sphere 3 marks 17. A girl joins two 20g masses A and B on a string and whirls them in a vertical circle Centre O of radius 50cm as shown below. The bodies maintained an angular velocity of 10 Rad-s Determine: a. The linear velocity of body A 2 marks b. Centripetal acceleration of Body B 2 marks c. The tension of the string i. T1 2 marks ii. T2 2 marks iii. T3 3 marks www.freekcsepastpapers.comPage 254 FORM IV CLUSTER EVALUATION, TRIAL 2, 2023 Kenya Certificate of Secondary Education 232 2 PHYSICS Paper 2 TERM 2, 2023 Time: 2 Hours SECTION A 25 MKS 1. A Figure 1 shows a ray of light incident on a plane mirror at point X. Complete the diagram indicating the angle of reflection. 2mks b State one characteristic of the image formed on plane mirror, 1mk 2. A Figure 2 shows a stationary charged rode X placed between two freely suspended charged rods, Y and Z. The charge on rod Z is indicated. Identify the type of charge on rods X and Y. 1mk b State one use of a charged gold leaf electroscope. 1mk 3. State the reason why current produced by a simple primary cell decreases rapidly when the cell is in use. 1mk 4. A State the reason why a freely suspended magnet always settles facing a particular direction. 1mk b Figure 3 shows poles of two bar magnets placed close to one another. Figure 3 Sketch the magnetic field pattern in the space between the poles. 1mk 5. Figure 4 shows the cross section of a conductor carrying some current and held between magnet field. Indicate using an arrow on the diagram the direction the conductor moves when released. 1mk www.freekcsepastpapers.comPage 255 6. A What is meant by the term echo? 1mk b Compare the speed of sound in air and in steel. 1mk c State one difference between stationary wave and progressive wave. 1mk 7. A State one difference sound waves and radio waves. |
1mk c State one difference between stationary wave and progressive wave. 1mk 7. A State one difference sound waves and radio waves. 1mk b Figure 5 shows how displacement varies with distance of a certain wave. 1mk Figure 5 On the same diagram, indicate the wavelength of the wave using the symbol. 1mk 8. A State one characteristic of images formed by a concave mirror. 1mk b Figure 6 shows a concave mirror of focal length 10cm and an object O, placed 15cm infront of the mirror. Using a ray diagram, complete the diagram to locate the image, I, formed. 2mks 9. Figure 7 shows an immersion heater used to heat some water initially at 250C to boiling point. State two factors that determine the time taken for the water to boil. 2mks 10. A radioactive substance initially has a mass of 0.4g and decays to 0.05g in 75 minutes. Determine the half-life of the substance. 2mks 11. State one difference between X-rays and infrared waves. 1mk 12. Figure 8 a and b shows P n junctions, each connected to a cell and a lamp. Figure 8 It is observed that the bulb in a does not light while the bulb in b lights. Explain the reason for these observations. 2mks www.freekcsepastpapers.comPage 256 SECTION B 55 MARKS 13. A Define the term critical angle of a refracting media. 1mk b One of the conditions necessary for total internal reflection to occur is that the critical angle must be exceeded. State the other condition. 1mk c The figure below shows a ray of light travelling from air and through a prism made of glass of refractive index 1.7 i On the diagram show the critical angle. 1mk ii Determine the I. Critical angle 2mks II. Angle x and y 2mks 14. A Define the term Thermionic emission 1mk b The figure below shows the sketch of a cathode ray Oscilloscope. I Label the parts marked A and C. |
A What quantity is represented by the values v u plotted on the vertical axis? 2mks b Determine the slope S of the graph. 1mk c Determine the x-intercept of the graph. 1mk d Given that ckvuv Determine the values of i k 1mk ii c 1mk 18. A Give one difference between x-rays and cathode rays. 1mk b The figure below shows a sketch of an x-ray tube. I Label the parts A, B and C. 3mks ii State the purpose of E and F. 1mk iii What physical characteristics are used to decide on the choice of C. 1mk b i State the function of the part labeled D. 1mk www.freekcsepastpapers.comPage 258 c Electrons from a cathode ray gun are accelerated in an X-ray tube by a potential of 10kV and used to produce X-rays. Only 0.5 of the electron energy converts into X-rays. Determine the i Maximum energy contained in the cathode electrons. 1mk ii Wavelength of the x-rays produced. 2mks Take h 6.62 x 10 34Js, C 3.0 x 108 m s 19. The figure below shows two capacitor plates held parallel to each other. A State and explain what happens to the capacitance of the plates if the top plate is moved as shown. 2mks b Show that if three capacitors in parallel have capacitances C1, C2 and C3, then the network capacitance is given as follows. CN C1 C2 C3 2mks c The figure below shows a network of capacitors. Determine the network capacitance. 2mks 20. A The figure below shows an experimental set-up consisting of a mounted lens L, a screen S, a metre rule and a candle. I Describe how the set-up may be used to determine the focal length, f, of the lens. 4mks ii State the reason why the set-up would not work if the lens was replaced with a diverging lens. |
A The figure below shows an experimental set-up consisting of a mounted lens L, a screen S, a metre rule and a candle. I Describe how the set-up may be used to determine the focal length, f, of the lens. 4mks ii State the reason why the set-up would not work if the lens was replaced with a diverging lens. 1mk b An object placed 15cm from a convex lens is magnified two times. Determine the focal length of the lens. 3mks www.freekcsepastpapers.comPage 259 FORM IV CLUSTER EVALUATION, TRIAL 2, 2023 Kenya Certificate of Secondary Education 232 3 PHYSICS Paper 3 PRACTICAL CONFIDENTIAL Please provide the following for the physics practical paper. QUESTION 1 2 dry cells A cell holder A switch An ammeter with a scale range of 0-1A Six connecting wires Wire mounted on the metre rule labelled X SWG 28 or 0.37mm in diameter A micrometer screw gauge to be shared A Voltmeter QUESTION 2 - a metre rule - knife edge raised at least 20 cm above bench - one 50 g mass and one 100 g mass - a beaker or any container - 2 pieces of thread around 15 cm each - some water in a beaker - Liquid L in a beaker Paraffin - Some tissue paper. -. A triangular glass prism - A piece of soft board - Four optical pins - Four office pins - A sheet of plain paperwww.freekcsepastpapers.comPage 260 FORM IV CLUSTER EVALUATION, TRIAL 2, 2023 Kenya Certificate of Secondary Education 232 3 PHYSICS Paper 3 PRACTICAL Time: 2 Hours Instructions to candidates: You are supposed to spend the first 15 minutes of the 2 hours allowed for this paper reading the whole paper carefully before commencing your work. Marks are given for a clear record of the observation actually made, their suitability, accuracy and the use made of them. Candidates are advised to record their observations as soon as they are made Non-programmable silent electronic calculators may be used. |
- A triangular glass prism - A piece of soft board - Four optical pins - Four office pins - A sheet of plain paperwww.freekcsepastpapers.comPage 260 FORM IV CLUSTER EVALUATION, TRIAL 2, 2023 Kenya Certificate of Secondary Education 232 3 PHYSICS Paper 3 PRACTICAL Time: 2 Hours Instructions to candidates: You are supposed to spend the first 15 minutes of the 2 hours allowed for this paper reading the whole paper carefully before commencing your work. Marks are given for a clear record of the observation actually made, their suitability, accuracy and the use made of them. Candidates are advised to record their observations as soon as they are made Non-programmable silent electronic calculators may be used. QUESTION 1 You are provided with the following: 2 dry cells A cell holder A switch An ammeter Five connecting wires Wire mounted on the metre rule labelled x A micrometer screw gauge to be shared A Voltmeter Proceed as follows a Measure the diameter of the wire three times and determine the average diameter, b D . M 2 marks c Determine the cross-section area of the wire, A . M2 1 mark d Connect the circuit as shown in the figure below. E Measure the voltage E from the Voltmeter, before closing the switch. E ................................ 1 mark f Adjust the length, of the wire to 0.2m, close the switch, S and read the value of current and record in the table below. Length, m 0.2 0.3 0.4 0.5 0.6 0.7 Current, I A 11 AI g Repeat the procedure in c above for the values of lengths given. 5 marks www.freekcsepastpapers.comPage 261 h Calculate the value of 1 and record in the table above. 1 mark i On the grid provided plot a graph of I1 y- axis against l 5 marks j Determine the gradient of the graph. |
Length, m 0.2 0.3 0.4 0.5 0.6 0.7 Current, I A 11 AI g Repeat the procedure in c above for the values of lengths given. 5 marks www.freekcsepastpapers.comPage 261 h Calculate the value of 1 and record in the table above. 1 mark i On the grid provided plot a graph of I1 y- axis against l 5 marks j Determine the gradient of the graph. 2 marks k Given that, 1 , determine the value of . 3 marks QUESTION 2 You are provided with the following: - a metre rule - knife edge raised 20 cm above bench - one 50 g mass and one 100 g mass - a beaker or any container - some thread - some water in a beaker - Liquid L in a beaker - tissue paper - A triangular glass prism - A piece of soft board - Four optical pins - Four office pins - A sheet of plain paper PART A Proceed as follows: a Balance the metre rule edge and record the reading at this point .............................................................. cm 1 mark For the rest of this experiment the knife edge must be placed at this position b Set up the apparatus as shown in the figure below. Use the thread provided to hang the masses such that the positions of support can be adjusted. The balance is attained by adjusting the position of the 100g mass. Note that the distances X is measured form the knife edge and the 50g mass is fully submerged in the water. C Record the value of X . Cm ................................................... 1 mark d Apply the principle of moments to determine the weight Ww of the 50 g mass in water and hence determine the up thrust Uw in water Ww N ............................................. 2 marks Uw N .............................................. |
Cm ................................................... 1 mark d Apply the principle of moments to determine the weight Ww of the 50 g mass in water and hence determine the up thrust Uw in water Ww N ............................................. 2 marks Uw N .............................................. 1 mark e Remove the 50 g mass from the water and dry it using tissue paper. F Maintaining the distance of 30cm in step d , now balance the metre rule when the 50 g mass is fully submerged in the liquid L Record the value of the distance X. cm ................................... 1 mark g Apply the principle of moments to determine the weight WL of the 50 g mass in the liquid L and hence determine the upthrust UL in the liquid i WL 2 mark ii UL 1 mark iii RD of liquid L 2 marks www.freekcsepastpapers.comPage 262 PART B Proceed as follows: a Place the plain sheet of paper on the soft board and pin it using the office pins at the comers. Trace the triangular prism outline of the prism on the sheet of paper use the upper part to leave space for two other outlines on the same page . Label the vertices of the outline at A, B and C. Remove the prism from the paper. B On the outline at a point O near the centre of side AB draw a normal ON. C Draw a line PO at an angle of 30 to the normal ON as shown in the figure below. D Replace the prism accurately on the outline. Fix two optical pins vertically on line PO at different points see the figure below . E View the images of the two pins through side AC of the outline. Fix a third and fourth pin vertically such that they are in line with the images of the first and second pin. Remove the prism and the pins. Draw a line joining the marks made by the third and fourth pins and extend it to join line PO also extended as shown below. Measure F, the angle of deviation of the emergent ray. 2 marks f Repeat part e for other angles of incidence shown in the table below. |
Draw a line joining the marks made by the third and fourth pins and extend it to join line PO also extended as shown below. Measure F, the angle of deviation of the emergent ray. 2 marks f Repeat part e for other angles of incidence shown in the table below. Draw a fresh outline of the prism for each angle of incidence Complete table 1 3 marks Angle of incidence 30 50 70 Angle of deviation g Determine: i E the angle of emergence between the emergent ray and the normal at the point of emergence at the least angle of deviation. 2 marks ii K given that 2 sin 30 2 where F0 is the least angle of deviation 2 marks www.freekcsepastpapers.comPage 232 LUGARI JOINT MOCK EXAMINATION, 2023 Kenya Certificate of Secondary Education 232 1 PHYSICS PAPER 1 TIME: 2HRS INSTRUCTIONS TO CANDIDATES i Answer ALL the questions in section A and B. ii All working MUST be clearly shown. Iii Non programmable silent calculators may be used. Constant: g 10N kg or 10m s2 SECTION A: 25 MARKS 1. The figure below shows part of a vernier calipers when the jaws are closed without an object in between the jaws. A State the zero error of the vernier callipers. 1mark b A student used the same vernier calipers to measure the diameter of a test tube of actual diameter 2.15cm. What was the reading shown by the vernier callipers? 1mark 2. State a reason why a burn from steam at 1000C is more severe than a burn from boiling water at the same temperature 1 mark 3. Apart from temperature difference between the ends of a material, state any other two factors that determines rate of heat flow in a material 2marks 4. A point in the rim of a wheel has a linear velocity of 5.6 m s. if the rim has a radius of 40cm determine the angular velocity of the point 2marks 5. A wooden block of mass 2kg is placed on a horizontal surface. |
A point in the rim of a wheel has a linear velocity of 5.6 m s. if the rim has a radius of 40cm determine the angular velocity of the point 2marks 5. A wooden block of mass 2kg is placed on a horizontal surface. A horizontal force of 12N is exerted on it makes it to accelerate at 5ms-2. Find the coefficient of friction between the surfaces. 3marks 6. Explain briefly how the temperature in a green house is kept higher than outside. 2 marks 7. The figure below shows two inflated balloons hanging vertically on light threads. State and explain the observation that will be made when a stream of air is blown in the space between the balloons. 2 marks 8. Explain why a hole in a ship near the bottom is more dangerous than the one near the top 1mark 9. The diagram bellow shows a uniform meter rule pivoted at its center and balanced by the forces shown. 3marks Determine the value of x. www.freekcsepastpapers.comPage 233 10. The figure shows a capillary tube dipped in water. State two differences that will be observed when water is replaced with mercury in the set up above. 2 marks 11. Give the transducer used to convert mechanical energy to electrical energy. 1 mark 12. A body is uniformly accelerated from rest to a final velocity of 100m s in 10seconds. Calculate the distance covered. 2marks 13. The figure below shows beaker containing a block of ice. State and explain the change in stability when the ice melts. 2marks SECTION B 55 MARKS 14. A Define the term heat capacity. 1 mark b A metal block of mass 2.0kg is heated electrically. The voltmeter read 12 volts and ammeter 4.0A. The temperature of the metal block increased from 250C to 750C in 10 minutes. Assuming no heat is lost to the surrounding. Determine: i Heat supplied by the heater. 2marks ii Heat gained by the metal cylinder 1mark iii Specific heat capacity of the metal block. |
Assuming no heat is lost to the surrounding. Determine: i Heat supplied by the heater. 2marks ii Heat gained by the metal cylinder 1mark iii Specific heat capacity of the metal block. 2marks c Explain why food cooks faster in a pressure cooker than in an open sufuria 2marks d The figure below shows two identical containers A and B containing hot water and ice block. State with reason which water cools faster assuming that the wire gauge absorbs negligible heat. 2marks 15 a State Newton s second law of motion in terms of in momentum. 1mark b i A bullet of mass 20.0 g is fired with a velocity of 300m s into a wooden block of mass 4.98 kg suspended from a long in extensible string. The bullet sticks into the wood and the two moves together. Find the velocity of the block and bullet immediately after collision took place. 2marks ii Calculate the height to which both swings upwards. 2marks Water Capillary tube Ice block wrapped in wire gauze Hot Water Floating ice block B Awww.freekcsepastpapers.comPage 234 c Figure shows a hydraulic press system using a lever of negligible mass on the side of a small piston pivoted at point P. A force of 200N is applied at R. Calculate; i The force F exerted by small piston on the liquid. 2marks ii The weight of the Bale supported by the large piston 2marks iii Efficiency of the system. 3marks 16. A State Archimedes principle 1mark b A cylinder of length 5.0 cm and uniform cross section area 50.00 cm2 is suspended from a spring balance and totally immersed in water. If the density of the material of the cylinder is 1.25g cm3 and density of water is 1g cm3determine: i The up thrust on the cylinder 2marks ii Weight of the cylinder 2marks iii The reading on the spring balance 2marks c i State the reason why lead shots are fixed at the bottom of hydrometer. |
3marks 16. A State Archimedes principle 1mark b A cylinder of length 5.0 cm and uniform cross section area 50.00 cm2 is suspended from a spring balance and totally immersed in water. If the density of the material of the cylinder is 1.25g cm3 and density of water is 1g cm3determine: i The up thrust on the cylinder 2marks ii Weight of the cylinder 2marks iii The reading on the spring balance 2marks c i State the reason why lead shots are fixed at the bottom of hydrometer. 1 mark ii A hydrometer of mass 30.0 g floats in water of density 1.0g cm3.If the bulb of the hydrometer had a volume of 2.8x10-5 m3 and stem has a cross section area of 1.0 cm2, what length of the stem would be submerged in the water. 3marks 17. A Define the term angular velocity. 1mark b The graph below was obtained from an experiment to investigate the variation of the centripetal force, F with the radius, r of the circle on which a body rotates was performed. From the graph, determine the angular velocity, of the body given that m 100g and F m 2r c where c is a constant. 3 marks c A stone of mass 40g is tied to the end of a string 50cm long and whirled in a vertical circle at 2 revolutions per second. Calculate the maximum tension in the string. 3marks d A stone is thrown horizontally with a velocity of 45m s from the top of a vertical tower 50m high. Determine: i The time taken by the bullet to reach the ground 2marks ii The maximum horizontal distance covered by the bullet 2marks P 100 cm 50 cm Liquid Area 180cm2 A Bale 200 N A 50 cm2 Rwww.freekcsepastpapers.comPage 235 18. A Define the absolute zero of the Kelvin temperature scale. |
3marks d A stone is thrown horizontally with a velocity of 45m s from the top of a vertical tower 50m high. Determine: i The time taken by the bullet to reach the ground 2marks ii The maximum horizontal distance covered by the bullet 2marks P 100 cm 50 cm Liquid Area 180cm2 A Bale 200 N A 50 cm2 Rwww.freekcsepastpapers.comPage 235 18. A Define the absolute zero of the Kelvin temperature scale. 1 mark b The diagram below shows an experiment to investigate the relationship between volume and temperature of a fixed mass of gas at constant pressure i While stating any measurements to be made, explain how the set up would be used to verify Charles law. 3marks iii On the grid shown in the figure below sketch a graph of volume cm3 against temperature 0C for the experiment above. Clearly mark with the letter T the absolute zero temperature. 1 mark c A mass of air of volume 750cm3 is heated at constant pressure from 100 C to 1000 C. determine the final volume of the air. 2marks d The figure below shows a graph of weights of persons entering a lift against the extension of four similar springs supporting a lift. From the graph determine, i The spring constant of the springs 3marks ii The spring constant of a single spring 1mrk 600000.050.10.150.20.250.3Force, F N Extension,e m www.freekcsepastpapers.comPage 236 LUGARI JOINT MOCK EXAMINATION, 2023 Kenya Certificate of Secondary Education 232 2 PHYSICS Theory Paper 2 TIME: 2 HOURS INSTRUCTIONS: Answer all questions in section A and B. All working must be clearly shown. Mathematical tables and electronic calculators may be used. SECTION A 25 MARKS Answer ALL the questions in this section. 1. Two plane mirrors are inclined at an angle of 120o to each other such that their reflecting surfaces face each other. An object pins stands midway between the mirrors. Draw a ray diagram to show all the images 3mks 2. State two conditions necessary for the occurrence of an annular eclipse 2mks 3. |
An object pins stands midway between the mirrors. Draw a ray diagram to show all the images 3mks 2. State two conditions necessary for the occurrence of an annular eclipse 2mks 3. The figure below shows two parallel rays incident on a concave mirror. F is the focal point of the mirror. Sketch on the same diagram the path of the rays after striking the mirror. 2mks 4. State the class of waves to which sound belongs 1mk 5. Calculate the value of the critical angle C shown in the figure below 2mks 6. In the diagram below, two electroscopes A and B carry same type of charges as shown. The two are then connected with a copper wire as shown State and explain the observations 2mks www.freekcsepastpapers.comPage 237 6. The figure below shows a real image I formed by a convex lens On the same grid, construct a ray diagram to locate the position of the object 2mks 7. State a property of electromagnetic wave on which the operation of a radar system is based 1mk 8. The figure below shows an attempt to supply each of the three lamps L1, L2 and L3 with a switch i Explain why this is a poor connection 1mk ii Redraw an adjacent diagram to show the best positioning for the switches 1mk 9. State one use of x-ray in medicine and one use in industry 2mks 10. Draw the magnetic field lines due to the configuration shown below 1mk 11. Sketch the current voltage characteristic of a junction diode in a forward bias mode 1mk 12. The graph below represents values of 1 f and corresponding values of wavelength for waves transmitted in a certain medium N S Soft iron 0 1 2 3 4 0.00 0.02 0.04 0.06 0.08 0.10 Wavelength, m 1 f Hz-1 www.freekcsepastpapers.comPage 238 From the graph, determine the speed of the waves 3mks 13. State one causes of power loss in long distance transmission wires and how these loses can be minimized 1mk SECTION B 55 MKS Answer all questions. 14. |
1mk III. Explain how the radiation from the radioactive source is detected in the chamber. 2mks IV. State one advantage of the cold chamber over a charged gold leaf electroscope when used as detectors of radiation 1mk b The graph below shows how the activity of a sample of the radioisotope technetium which is used extensively in medicine, varies with time. I. Use the graph to determine the half-life, T of technetium 1mk II. Hence calculate the decay constant for technetium given that 6931.021 Twhere is the decay constant. 1mk III. Determine the number of technetium atoms remaining in the sample after 24 hours 1mk Felt soaked in alcohol Base of chamber Radioactive source Solid CO2 Form Transparent glass Lamp Time hours 0 2 4 6 8 10 12 14 16 18 20 22 24 0 1 2 3 4 5 6 7 8 Activity x 107 B2 www.freekcsepastpapers.comPage 240 16. The figure below shows the features of an X-ray tube a i What is the purpose of the oil going in and out of the anode 1mk ii State with reason the property of tungsten that makes it suitable as a target 1mk b An X-ray tube operates with a potential difference of 100kv and filament current is 20mA. Calculate; I. The power transferred to the target of X-ray tube 2mks II. The number of electrons hitting the target per second 2mks III. The maximum energy of X-ray produced Take charge of an electron 1.6x10-19C, mass of an electron 9.1x10-31kg, fmax 3 x 1019 Hz 2mks c The diagram shows monochromatic radiation falling on a photocell connected to a circuit The incident radiation has a wavelength of 2.15x10-7m. The metal surface of the photocell has a work function of 2.26 eV I. |
The number of electrons hitting the target per second 2mks III. The maximum energy of X-ray produced Take charge of an electron 1.6x10-19C, mass of an electron 9.1x10-31kg, fmax 3 x 1019 Hz 2mks c The diagram shows monochromatic radiation falling on a photocell connected to a circuit The incident radiation has a wavelength of 2.15x10-7m. The metal surface of the photocell has a work function of 2.26 eV I. Calculate the energy in eV of a proton of the incident radiation Take speed of light C 3.0x108ms-1, Planck s constant, h 6.63x10-34JS and electronic charge, e 1.6x10-19C 3mks II. What is the maximum kinetic energy of the emitted electrons 2mks III. Write down the value of the stopping potential 1mk 17. A State Lenz s law of electro-magnetic induction 1mk b In the figure below, the bar magnet is moved out of the coil i If the current, I is induced in the coil in the direction shown, what is the polarity of x of the magnet? 1mk ii Explain briefly the source of electrical energy in the circuit 1mk c A hydro-electric power station produces 500KW at a voltage of 10KV. The voltage is then stepped up to 150KV and the power is transmitted through cables of resistance 200 to a step-down transformer in a sub-station. Assuming that both transformers are 100 efficient. Calculate; Vacuum Filament supply Tungsten target Copper anode x-rays Cathode Filament High p.d Variable d.c supply -6v to 6v Anode Incident monochromatic Photo cathode Motionwww.freekcsepastpapers.comPage 241 i The current produced by the generator 2mks ii The current that flows through the transmission cables 2mks iii The voltage drop across the transmission cables 2mks iv The power loss during transmission 2mks v The power that reaches the sub-station 2mks 18. |
The voltage is then stepped up to 150KV and the power is transmitted through cables of resistance 200 to a step-down transformer in a sub-station. Assuming that both transformers are 100 efficient. Calculate; Vacuum Filament supply Tungsten target Copper anode x-rays Cathode Filament High p.d Variable d.c supply -6v to 6v Anode Incident monochromatic Photo cathode Motionwww.freekcsepastpapers.comPage 241 i The current produced by the generator 2mks ii The current that flows through the transmission cables 2mks iii The voltage drop across the transmission cables 2mks iv The power loss during transmission 2mks v The power that reaches the sub-station 2mks 18. A The following graph shows the variation of image distance, v, with magnification, for a converging lens. Using the graph and the equation 1 Mfv determine: i The object position when the image position is 45 cm 2mks ii The focal length of the lens 2mks iii The power of the lens 2mks b The following figure shows an eye defect Name the defect and illustrate on the same diagram how the defect could be corrected. 2mks Image distance 10cm www.freekcsepastpapers.comPage 242 LUGARI JOINT MOCK EXAMINATION Kenya Certificate of Secondary Education 2023 232 3 PHYSICS PAPER 3 Answer all the questions. I You are provided with the following: ii A watch glass iii A small piece of plasticine iv A marble v A stop watch vi Vernier calipers vii Triangular glass prism viii Four optical pins ix Some cello tape x A soft board xi A plain sheet of paper xii An electronic balance for sharing i Record the mass of the marble. .m 1mk a Place the watch glass flat on the table with a small piece of plasticine to fix it firmly to the bench at the one place it touches. Release the marble from one end of the watch glass and time 10 complete oscillations with a stop watch. Repeat these three times. |
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