task stringlengths 34 71 | input stringlengths 8 997 | output stringlengths 1 255 | options list | pageTitle stringlengths 18 37 | outputColName stringlengths 1 30 | url stringlengths 39 45 | wdcFile stringlengths 71 74 |
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4f44d303_lashcards_about_BAF_101_Test_2__Question | [Answer] payday loans [Question] | cash advances, check advance loans, delayed deposit loans; users of these loans are workers in debt; borrowers pay annual interest rate 780% to obtain needed cash | [] | Flashcards about BAF 101 Test 2 | Question | http://www.studystack.com/flashcard-1005981 | 42/1438042989018.40_20150728002309-00207-ip-10-236-191-2_735339184_3.json |
4f44d303_lashcards_about_BAF_101_Test_2__Question | [Answer] rent-to-own centers [Question] | stores that lease products to consumers who can own the item if they complete a certain number of monthly payments | [] | Flashcards about BAF 101 Test 2 | Question | http://www.studystack.com/flashcard-1005981 | 42/1438042989018.40_20150728002309-00207-ip-10-236-191-2_735339184_3.json |
4f44d303_lashcards_about_BAF_101_Test_2__Question | [Answer] regular savings accounts [Question] | involve a low or no minimum balance and allow you to withdraw money as needed; called share accounts at credit unions; offered at many financial institutions | [] | Flashcards about BAF 101 Test 2 | Question | http://www.studystack.com/flashcard-1005981 | 42/1438042989018.40_20150728002309-00207-ip-10-236-191-2_735339184_3.json |
4f44d303_lashcards_about_BAF_101_Test_2__Question | [Answer] certificate of deposit [Question] | a savings plan requiring that a certain amount be left on deposit for a states time period to earn a specified interest rate | [] | Flashcards about BAF 101 Test 2 | Question | http://www.studystack.com/flashcard-1005981 | 42/1438042989018.40_20150728002309-00207-ip-10-236-191-2_735339184_3.json |
4f44d303_lashcards_about_BAF_101_Test_2__Question | [Answer] interest-earning checking accounts [Question] | usually pay a low interest rate; checking accounts having a savings feature | [] | Flashcards about BAF 101 Test 2 | Question | http://www.studystack.com/flashcard-1005981 | 42/1438042989018.40_20150728002309-00207-ip-10-236-191-2_735339184_3.json |
4f44d303_lashcards_about_BAF_101_Test_2__Question | [Answer] money market account [Question] | savings account offered by banks, savings and loan, and credit unions that requires a minimum balance and has earnings based on market interest rates | [] | Flashcards about BAF 101 Test 2 | Question | http://www.studystack.com/flashcard-1005981 | 42/1438042989018.40_20150728002309-00207-ip-10-236-191-2_735339184_3.json |
4f44d303_lashcards_about_BAF_101_Test_2__Question | [Answer] EE bonds [Question] | purchased at face value; increase in value every month as interest accrues monthly and compounds semiannually | [] | Flashcards about BAF 101 Test 2 | Question | http://www.studystack.com/flashcard-1005981 | 42/1438042989018.40_20150728002309-00207-ip-10-236-191-2_735339184_3.json |
4f44d303_lashcards_about_BAF_101_Test_2__Question | [Answer] HH Bonds [Question] | current income bonds; earn interest every six months, which is deposited electronically to bank account; taxed as current income; popular source of retirement income | [] | Flashcards about BAF 101 Test 2 | Question | http://www.studystack.com/flashcard-1005981 | 42/1438042989018.40_20150728002309-00207-ip-10-236-191-2_735339184_3.json |
4f44d303_lashcards_about_BAF_101_Test_2__Question | [Answer] I bonds [Question] | earns a combined rate consisting of a fixed rate for the life of the bond and an inflation rate that changes twice a year | [] | Flashcards about BAF 101 Test 2 | Question | http://www.studystack.com/flashcard-1005981 | 42/1438042989018.40_20150728002309-00207-ip-10-236-191-2_735339184_3.json |
4f44d303_lashcards_about_BAF_101_Test_2__Question | [Answer] compounding [Question] | a process that calculates interest based on previously earned interest | [] | Flashcards about BAF 101 Test 2 | Question | http://www.studystack.com/flashcard-1005981 | 42/1438042989018.40_20150728002309-00207-ip-10-236-191-2_735339184_3.json |
4f44d303_lashcards_about_BAF_101_Test_2__Question | [Answer] inflation [Question] | as this rate increases, the interest rate offered to savers also increase; the rate of return you earn on your savings should be compared with this | [] | Flashcards about BAF 101 Test 2 | Question | http://www.studystack.com/flashcard-1005981 | 42/1438042989018.40_20150728002309-00207-ip-10-236-191-2_735339184_3.json |
4f44d303_lashcards_about_BAF_101_Test_2__Question | [Answer] taxes [Question] | reduce interest earned on savings | [] | Flashcards about BAF 101 Test 2 | Question | http://www.studystack.com/flashcard-1005981 | 42/1438042989018.40_20150728002309-00207-ip-10-236-191-2_735339184_3.json |
4f44d303_lashcards_about_BAF_101_Test_2__Question | [Answer] liquidity [Question] | allows you to withdraw your money on short notice without a loss of value or fees | [] | Flashcards about BAF 101 Test 2 | Question | http://www.studystack.com/flashcard-1005981 | 42/1438042989018.40_20150728002309-00207-ip-10-236-191-2_735339184_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 门 [Answer] mén [2] | door | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 真 [Answer] zhēn [2] | real | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 欢迎 [Answer] huānyíng [2] | to welcome | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 厕所 [Answer] cèsuǒ [2] | toilet | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 乱 [Answer] luàn [2] | in a mess | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 干净 [Answer] gānjìng [2] | clean | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 桌子 [Answer] zhuōzi [2] | table | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 对面 [Answer] duìmiàn [2] | opposite side | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 参观 [Answer] cānguān [2] | to visit (a place) | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 教室 [Answer] jiàoshì [2] | classroom | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 客厅 [Answer] kètīng [2] | living room | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 餐厅 [Answer] cāntīng [2] | dininng room | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 右边 [Answer] yòubian [2] | right side | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 公园 [Answer] gōngyuán [2] | park | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 左边 [Answer] zuǒbian [2] | the left side | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 窗户 [Answer] chuānghu [2] | window | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 卧室 [Answer] wòshì [2] | bedroom | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 中间 [Answer] zhōngjiān [2] | center | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 厨房 [Answer] chúfáng [2] | kitchen | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 旁边 [Answer] pángbiān [2] | side | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 杂志 [Answer] zázhì [2] | magazine | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 脏 [Answer] zāng [2] | dirty | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 床 [Answer] chuáng [2] | bed | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 前边 [Answer] qiánbian [2] | in front | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 整齐 [Answer] zhěngqí [2] | tidy | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 上边 [Answer] shàngbian [2] | above | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 后边 [Answer] hòubian [2] | back | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 里边 [Answer] lǐbian [2] | inside | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 椅子 [Answer] yǐzi [2] | chair | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 整理 [Answer] zhěnglǐ [2] | put in order | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 洗澡间 [Answer] xǐzǎojiān [2] | bathroom | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 公用 [Answer] gōngyòng [2] | public | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
d9b5f1f5_ashcards_about_IVC_Chinese_L15__2 | [Question] 走 [Answer] zǒu [2] | to walk | [] | Flashcards about IVC Chinese L15 | 2 | http://www.studystack.com/flashcard-333853 | 42/1438042988310.3_20150728002308-00136-ip-10-236-191-2_724805099_3.json |
5a3ccf03_Flashcards_about_probability_7__Question | [Answer] The chance that something will happen. [Question] | What is the definition for probability? | [] | Flashcards about probability 7 | Question | http://www.studystack.com/flashcard-225189 | 48/1438042987034.19_20150728002307-00133-ip-10-236-191-2_725189391_3.json |
5a3ccf03_Flashcards_about_probability_7__Question | [Answer] The result of an experiment. [Question] | What is the definition for outcome? | [] | Flashcards about probability 7 | Question | http://www.studystack.com/flashcard-225189 | 48/1438042987034.19_20150728002307-00133-ip-10-236-191-2_725189391_3.json |
5a3ccf03_Flashcards_about_probability_7__Question | [Answer] All of the possible outcomes of an experiment. [Question] | What is the definition for sample space? | [] | Flashcards about probability 7 | Question | http://www.studystack.com/flashcard-225189 | 48/1438042987034.19_20150728002307-00133-ip-10-236-191-2_725189391_3.json |
5a3ccf03_Flashcards_about_probability_7__Question | [Answer] Positive that it will happen. 100% chance it will happen. [Question] | What is the definition of certain? | [] | Flashcards about probability 7 | Question | http://www.studystack.com/flashcard-225189 | 48/1438042987034.19_20150728002307-00133-ip-10-236-191-2_725189391_3.json |
5a3ccf03_Flashcards_about_probability_7__Question | [Answer] No chance of it happening. [Question] | What is the definition for impossible? | [] | Flashcards about probability 7 | Question | http://www.studystack.com/flashcard-225189 | 48/1438042987034.19_20150728002307-00133-ip-10-236-191-2_725189391_3.json |
5a3ccf03_Flashcards_about_probability_7__Question | [Answer] Over 50% chance of happening. [Question] | What is the definition for likely? | [] | Flashcards about probability 7 | Question | http://www.studystack.com/flashcard-225189 | 48/1438042987034.19_20150728002307-00133-ip-10-236-191-2_725189391_3.json |
5a3ccf03_Flashcards_about_probability_7__Question | [Answer] A good chance it will it will not happen. Less that 50% chance. [Question] | What is the definition of unlikely? | [] | Flashcards about probability 7 | Question | http://www.studystack.com/flashcard-225189 | 48/1438042987034.19_20150728002307-00133-ip-10-236-191-2_725189391_3.json |
5a3ccf03_Flashcards_about_probability_7__Question | [Answer] There is an equal chance for all the choices. [Question] | What is the definition of equally likely? | [] | Flashcards about probability 7 | Question | http://www.studystack.com/flashcard-225189 | 48/1438042987034.19_20150728002307-00133-ip-10-236-191-2_725189391_3.json |
5a3ccf03_Flashcards_about_probability_7__Question | [Answer] An educated guess using the information you have. [Question] | What is the definition for prediction? | [] | Flashcards about probability 7 | Question | http://www.studystack.com/flashcard-225189 | 48/1438042987034.19_20150728002307-00133-ip-10-236-191-2_725189391_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The Earth spins once on its axis in . . . [Response] a day (of 24 hours) [Comment] | Actually 23h 56m 4s | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The Earth orbits the Sun once . . . [Response] each year of 365.25 days [Comment] | Actually it is a little more than a quarter of a day so we have to miss a leap year unless the century divides by 400. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The stars in the night sky stay in fixed patterns called . . . [Response] constellations [Comment] | They do move but very slowly so we see no appreciable change even after 100s of years. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The planets which are visible to the naked eye look like stars but . . . [Response] they move slowly across the constellations. [Comment] | Mars moves completely around the sky in just under 2 years. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Stars emit their own light, but planets . . . [Response] are seen because they reflect sunlight. [Comment] | The brightest planet is Venus, because it is the closest one to us and it reflects a lot of light from its clouds. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Where we see a planet depends on . . . [Response] where it is in its orbit relative to the Earth. [Comment] | We can overtake Mars and the other outer planets because they move more slowly than the Earth does. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The orbits of the planets are best described as . . . [Response] ellipses or slightly squashed circles. [Comment] | Apart from Pluto, the orbits of the planets are very nearly circular. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Comets have orbits which are far from circular. They can best be seen when they are . . . [Response] close to the Sun ( at perihelion ) [Comment] | This is because they are closer to the Earth but also because they have developed long tails and become much brighter. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The tail of a comet always points . . . [Response] away from the Sun. [Comment] | Because the solar wind and the pressure of sunlight blow the dust and gases away from the comet's nucleus. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Satellites can be put into orbit around the Earth. They can be used to . . . [Response] send or recieve information, monitor the weather and observe the universe. [Comment] | The type of satellite determines its orbit. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] A telecommunications satellite is best placed . . . [Response] in a geostationary orbit above the equator. [Comment] | The period of the orbit is the same as the Earth's 24 hour day. It appears to be stationary above the same point all the time. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] A spy satellite is best placed . . . [Response] in a polar orbit so it can see the whole Earth during a 24 hour day. [Comment] | It makes one orbit every 90 minutes so it does 16 complete orbits every day. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] A satellite which is close to the Earth's surface has a . . . [Response] short orbital period. [Comment] | This is because it needs to move faster to avoid being pulled down by Earth's gravity. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The Earth, Sun and Moon all attract each other with a force called . . . [Response] GRAVITY [Comment] | All bodies with MASS attract each other - even humans! | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] As the distance between two bodies increases, the force of gravity between them . . . [Response] DECREASES [Comment] | Isaac Newton said it varies as the inverse square of the distance. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Mercury is the closest planet to the Sun. It orbits once every 88 days. Pluto takes 248 years, why? [Response] Mercury feels a strong force of gravity close to the Sun, it is much weaker at the distance of Pluto. [Comment] | Pluto also has much further to travel but it is moving much more slowly than Mercury. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] A smaller body will stay in orbit around a larger one because . . . [Response] the combination of its high speed and the force of gravity prevents it either falling to the surface or flying away into space. [Comment] | Kepler's laws describe this perfectly. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] To stay in orbit around a planet a satellite must have . . . [Response] the correct combination of speed and distance. [Comment] | The square of the period is proportional to the cube of the distance. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The further away an orbiting body is . . . [Response] the longer it takes to make a complete orbit. [Comment] | See Kepler's laws - not on the Physics paper but astronomers know them very well! | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Our Sun is just one of millions in our galaxy which is called . . . [Response] the Milky Way [Comment] | We believe it is a spiral galaxy. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The stars in a galaxy are usually millions of times further away from each other than . . . [Response] the planets in the solar system. [Comment] | "You may think that it is a long way to the chemists, but that's just peanuts to space." | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The Universe as a whole is made up of at least . . . [Response] a BILLION galaxies. [Comment] | You can almost certainly multiply this by 100 ! | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Galaxies are often millions of times further apart than . . . [Response] stars within a galaxy. [Comment] | If you put two grains of sand inside a cathedral they would still be closer together than stars in the galaxy - relatively speaking. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Stars, including the Sun, form when enough gas and dust in space is pulled together by . . . [Response] gravitational attraction. [Comment] | Large clouds of hydrogen gas are called nebulae. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Smaller bodies than stars may also form from clouds of gas and dust. They are called . . . [Response] PLANETS [Comment] | That's how Earth formed over 4.6 billion years ago. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] One way to search for life on other planets would be to . . . [Response] send robot spacecraft to take pictures or return samples. [Comment] | Care must be taken to avoid contamination - both of the planet and our own when the samples return. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Living organisms might reveal their presence by . . . [Response] chemical changes they produce in a closed system. [Comment] | The atmosphere of Earth has free oxygen produced by green plants (photosynthesis). | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Intelligent lifeforms may be able to communicate with us by . . . [Response] sending radio signals we can detect with our radio telescopes. [Comment] | Jodrell Bank in Cheshire has been 'listening' for intelligent signals for years - without success (so far!) | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The search for extra-terrestrial intelligence (SETI) uses radio telescopes to try to find . . . [Response] meaningful signals in a narrow band of wavelengths - not just NOISE. [Comment] | If we detected binary code containing prime numbers we would be pretty impressed. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Individual stars, including our Sun, do not stay the same forever. The main reason for this is because . . . [Response] they eventually run out of fuel in their cores. [Comment] | Hydrogen is the fuel used by stars for most of their lives. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Stars are very massive so the force of gravity which holds them together is . . . [Response] very strong. [Comment] | It causes their cores to be highly compressed. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The high temperatures in their cores create . . . [Response] high pressure which holds the star up against gravity. [Comment] | This is a delicate balance, like balancing a ping pong ball on the jet of air from a hair dryer - try it! | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The forces of gravity and pressure within a star remain balanced during . . . [Response] the main stable period of its life, which may last for billions of years. [Comment] | Our Sun is already 4.6 billion years old and good for another 4 billion ( we hope!) | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] When a star runs short of hydrogen fuel, its core begins to . . . [Response] Shrink [Comment] | Paradoxically, this cause the core to heat up - try squeezing the air in a bicycle pump. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] When a star like the Sun reaches the end of its stable period, it will become a . . . [Response] RED GIANT! [Comment] | The Sun will swell up until it swallows the Earth and possibly Mars too. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] When a star like the Sun reaches the end of its life, it will shrink to become . . . [Response] a WHITE DWARF [Comment] | These are very hot but small stars about the size of the Earth. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The matter from which a white dwarf is made is . . . [Response] millions of times denser than any matter on Earth. [Comment] | A teaspoonful would weigh more than a tonne. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Stars which are much more massive than the Sun do not die quietly. They may . . . [Response] explode as supernovae. [Comment] | They scatter their ashes throughout the galaxy. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] We cannot see black holes directly, but we can detect . . . [Response] X-rays emitted by hot gas as it spirals into the black hole. [Comment] | Cygnus X-1 was the first black hole to be discovered in this way. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] During a star's lifetime, nuclei of lighter elements gradually . . . [Response] FUSE together to produce nuclei of heavier elements. [Comment] | Hydrogen nuclei undergo fusion reactions to produce helium in the Sun. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The energy released by nuclear fusion is . . . [Response] radiated away into spcae by stars. [Comment] | This is how the Sun 'shines'. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Nuclei of heavier elements ( such as gold) are present in the Sun and planets. This suggests that . . . [Response] the solar system was formed from the material produced when earlier stars exploded. [Comment] | "We are stardust . . . " | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Edwin Hubble discovered in the 1920s that the light from distant galaxies is redshifted. This suggests that . . . [Response] most of the galaxies are moving away from us. [Comment] | Some nearby galaxies are actually getting closer, but this is only a little local disturbance. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] The further away a galaxy is, the greater its . . . [Response] redshift. [Comment] | If the Universe is expanding it is doing so uniformly. | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
29241085_lashcards_about_Earth___Beyond__Comment | [Statement] Hubble's discovery of redshift strongly suggests that . . . [Response] the Universe began with a Big Bang. [Comment] | If you wind the tape back you will get a Big Crunch ( or gnaB giB ) | [] | Flashcards about Earth & Beyond | Comment | http://www.studystack.com/flashcard-18066 | 48/1438042987034.19_20150728002307-00332-ip-10-236-191-2_726457213_3.json |
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