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Answer the question truthfully.
Select the solid. Choose from: pencil, rain puddle, helium, wet paint.
Helium is a gas. A gas expands to fill a space. Helium is lighter than air. So, if you fill a balloon with helium, the balloon will rise. If helium leaks out of the balloon, the helium will expand into the space around the balloon. A pencil is a solid. You can break a pencil into pieces. But each piece will still have ...
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Answer the question truthfully.
Two donkeys pull carts from the farmhouse to the yard. The carts are the same. Each cart is holding different tools. The donkeys move the carts at the same speed. Which cart is pulled with a larger force? Choose from: a cart holding 95 pounds, a cart holding 61 pounds.
Look for the cart that is heavier. A cart holding 95 pounds is heavier than a cart holding 61 pounds. So, the cart holding 95 pounds needs a larger force to start moving at the same speed as the other cart.
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Answer the question truthfully.
Compare the motion of two ducks. Which duck was moving at a lower speed? Choose from: a duck that moved 550miles in 10hours, a duck that moved 355miles in 10hours.
Look at the distance each duck moved and the time it took to move that distance. One duck moved 355 miles in 10 hours. The other duck moved 550 miles in 10 hours. Notice that each duck spent the same amount of time moving. The duck that moved 355 miles moved a shorter distance in that time. So, that duck must have move...
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Answer the question truthfully.
The objects are identical except for their temperatures. Which object has the most thermal energy? Choose from: a 200-gram cup of black tea at a temperature of 56°C, a 200-gram cup of black tea at a temperature of 41°C, a 200-gram cup of black tea at a temperature of 39°C.
All three cups of black tea have the same mass but different temperatures. Since the 56°C cup of black tea is the hottest, it has the most thermal energy.
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Answer the question truthfully.
Compare the motion of three cars. Which car was moving at the highest speed? Choose from: a car that moved 150kilometers south in 5hours, a car that moved 330kilometers east in 5hours, a car that moved 250kilometers north in 5hours.
Look at the distance each car moved and the time it took to move that distance. The direction each car moved does not affect its speed. Notice that each car moved for 5 hours. The car that moved 330 kilometers moved the farthest distance in that time. So, that car must have moved at the highest speed.
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Answer the question truthfully.
Read the text about an animal in motion. A gecko used its sticky feet to crawl from the bottom of a window to the top of the window. Complete the statement. Assume that the gecko's mass did not change. The gravitational potential energy stored between the gecko and Earth () as the gecko crawled on the window. Choose fr...
Think about how the distance between the gecko and the center of Earth changed. The top of the window is higher than the bottom of the window. As the gecko crawled toward the top of the window, the distance between the gecko and the center of Earth increased. So, the gravitational potential energy stored between the ge...
[ 0.2692853510379791, -0.10541722178459167, 0.5404797196388245, -0.4365403950214386, 0.5520049929618835, 0.20911429822444916, -0.3217306435108185, -0.09019870311021805, -0.15351414680480957, 0.7990974187850952, -0.17403627932071686, 0.07610365003347397, -0.5318146347999573, 0.028413617983460...
Answer the question truthfully.
The objects are identical except for their temperatures. Which object has more thermal energy? Choose from: a 700-gram rock at a temperature of 70°C, a 700-gram rock at a temperature of 45°C.
The two rocks have the same mass but different temperatures. Since the 70°C rock is hotter than the 45°C rock, it has more thermal energy.
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Answer the question truthfully.
Which is softer? Choose from: metal nail, rubber balloons.
Soft is a property. A soft material changes shape when you press on it. Look at each picture, one at a time. Imagine touching the material shown in each picture. Of the choices, the rubber balloons are softer. If you squeeze rubber, it will change shape.
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Answer the question truthfully.
The objects are identical except for their temperatures. Which object has the most thermal energy? Choose from: a cookie at a temperature of 12°C, a cookie at a temperature of 10°C, a cookie at a temperature of 13°C.
All three cookies have the same mass but different temperatures. Since the 13°C cookie is the hottest, it has the most thermal energy.
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Answer the question truthfully.
Compare the motion of three ducks. Which duck was moving at the highest speed? Choose from: a duck that moved 175miles west in 5hours, a duck that moved 220miles east in 5hours, a duck that moved 260miles north in 5hours.
Look at the distance each duck moved and the time it took to move that distance. The direction each duck moved does not affect its speed. Notice that each duck moved for 5 hours. The duck that moved 260 miles moved the farthest distance in that time. So, that duck must have moved at the highest speed.
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Answer the question truthfully.
The objects are identical except for their temperatures. Which object has less thermal energy? Choose from: a 400-gram rock at a temperature of 65°C, a 400-gram rock at a temperature of 75°C.
The two rocks have the same mass but different temperatures. Since the 65°C rock is colder than the 75°C rock, it has less thermal energy.
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Answer the question truthfully.
Tamir is standing on a diving board at the pool. Earth's gravity is pulling down on Tamir with a force of 400N. The diving board is pushing up on Tamir with a force of 400N. Assume all other forces on Tamir are balanced. Which statement describes the forces on Tamir? Choose from: The forces are balanced, so there is no...
To determine if there is a net force on Tamir, look at the forces: Earth's gravity is pulling Tamir down with a force of 400 N. The diving board is pushing Tamir up with a force of 400 N. The forces are in opposite directions, and the forces have the same magnitude: 400 N. This means that the forces are balanced, so th...
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Answer the question truthfully.
Compare the motion of three blue jays. Which blue jay was moving at the lowest speed? Choose from: a blue jay that moved 325kilometers east in 10hours, a blue jay that moved 345kilometers south in 10hours, a blue jay that moved 315kilometers south in 10hours.
Look at the distance each blue jay moved and the time it took to move that distance. The direction each blue jay moved does not affect its speed. Notice that each blue jay moved for 10 hours. The blue jay that moved 315 kilometers moved the shortest distance in that time. So, that blue jay must have moved at the lowest...
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Answer the question truthfully.
Compare the motion of two motorboats. Which motorboat was moving at a higher speed? Choose from: a motorboat that moved 245miles in 10hours, a motorboat that moved 145miles in 10hours.
Look at the distance each motorboat moved and the time it took to move that distance. One motorboat moved 245 miles in 10 hours. The other motorboat moved 145 miles in 10 hours. Notice that each motorboat spent the same amount of time moving. The motorboat that moved 245 miles moved a farther distance in that time. So,...
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Answer the question truthfully.
Two cookies are identical except for their temperatures. Which cookie has less thermal energy? Choose from: the hotter cookie, the colder cookie.
The two cookies are made of the same material and have the same mass. So, the colder cookie has less thermal energy.
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Answer the question truthfully.
Two trays of lasagna are identical except for their temperatures. Which tray of lasagna has more thermal energy? Choose from: the colder tray of lasagna, the hotter tray of lasagna.
The two trays of lasagna are made of the same material and have the same mass. So, the hotter tray of lasagna has more thermal energy.
[ -0.2732372581958771, -0.41768765449523926, -0.5210951566696167, 0.23152324557304382, 0.6697266101837158, 0.18089774250984192, 0.7194623351097107, -0.11401082575321198, 0.15020792186260223, 0.06243332102894783, -0.15509085357189178, -0.12438560277223587, -0.3445957601070404, 0.7308660745620...
Answer the question truthfully.
Compare the motion of three motorboats. Which motorboat was moving at the lowest speed? Choose from: a motorboat that moved 105miles south in 5hours, a motorboat that moved 190miles west in 5hours, a motorboat that moved 30miles east in 5hours.
Look at the distance each motorboat moved and the time it took to move that distance. The direction each motorboat moved does not affect its speed. Notice that each motorboat moved for 5 hours. The motorboat that moved 30 miles moved the shortest distance in that time. So, that motorboat must have moved at the lowest s...
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Answer the question truthfully.
Two plates of spaghetti are identical except for their temperatures. Which plate of spaghetti has less thermal energy? Choose from: the hotter plate of spaghetti, the colder plate of spaghetti.
The two plates of spaghetti are made of the same material and have the same mass. So, the colder plate of spaghetti has less thermal energy.
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Answer the question truthfully.
Two movers are putting heavy boxes into their truck. The boxes are the same shape and size. Each mover lifts one box up into the truck at a time. The movers lift the boxes at the same speed. Which box is lifted with a larger force? Choose from: a box holding 39 pounds, a box holding 27 pounds.
Look for the box that is heavier. A box holding 39 pounds is heavier than a box holding 27 pounds. So, the box holding 39 pounds needs a larger force to start moving upward at the same speed as the other box.
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Answer the question truthfully.
Two fish tanks are identical except for their temperatures. Which fish tank has less thermal energy? Choose from: the colder fish tank, the hotter fish tank.
The two fish tanks are made of the same material and have the same mass. So, the colder fish tank has less thermal energy.
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Answer the question truthfully.
The objects are identical except for their temperatures. Which object has more thermal energy? Choose from: a 125-gram glass of grape juice at a temperature of 75°F, a 125-gram glass of grape juice at a temperature of 50°F.
The two glasses of grape juice have the same mass but different temperatures. Since the 75°F glass of grape juice is hotter than the 50°F glass of grape juice, it has more thermal energy.
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Answer the question truthfully.
The objects are identical except for their temperatures. Which object has less thermal energy? Choose from: a 150-gram glass of apple juice at a temperature of 5°C, a 150-gram glass of apple juice at a temperature of 10°C.
The two glasses of apple juice have the same mass but different temperatures. Since the 5°C glass of apple juice is colder than the 10°C glass of apple juice, it has less thermal energy.
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Answer the question truthfully.
The objects are identical except for their temperatures. Which object has more thermal energy? Choose from: a 5-kilogram brick at a temperature of 365°F, a 5-kilogram brick at a temperature of 285°F.
The two bricks have the same mass but different temperatures. Since the 365°F brick is hotter than the 285°F brick, it has more thermal energy.
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Answer the question truthfully.
Kids from two different schools are riding their school buses home. The buses are the same. They are going the same speed. But different numbers of kids are riding in each bus. Each bus takes the same amount of time to stop. Which school bus needs a larger force to come to a stop? Choose from: a school bus carrying 500...
Look for the school bus that is heavier. A school bus carrying 650 pounds is heavier than a school bus carrying 500 pounds. So, the school bus carrying 650 pounds needs a larger force to come to a stop in the same amount of time as the other bus.
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Answer the question truthfully.
Select the liquid. Choose from: water in a fishbowl, chalk, gold bracelet.
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Answer the question truthfully.
Select the solid. Choose from: air inside a basketball, water droplets, grape juice, stuffed rabbit.
The air inside a basketball is a gas. A gas expands to fill a space. The air fills all the space inside the basketball. If air leaks out, it will expand into the space around the ball. A stuffed rabbit is a solid. A solid has a size and shape of its own. When you hold a stuffed rabbit in your hands, the stuffed rabbit ...
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Answer the question truthfully.
Two donkeys pull carts from the farmhouse to the yard. The carts are the same. Each cart is holding different tools. The donkeys move the carts at the same speed. Which cart is pulled with a larger force? Choose from: a cart holding 61 pounds, a cart holding 66 pounds.
Look for the cart that is heavier. A cart holding 66 pounds is heavier than a cart holding 61 pounds. So, the cart holding 66 pounds needs a larger force to start moving at the same speed as the other cart.
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Answer the question truthfully.
Compare the motion of three ducks. Which duck was moving at the lowest speed? Choose from: a duck that moved 430miles east in 10hours, a duck that moved 525miles north in 10hours, a duck that moved 555miles north in 10hours.
Look at the distance each duck moved and the time it took to move that distance. The direction each duck moved does not affect its speed. Notice that each duck moved for 10 hours. The duck that moved 430 miles moved the shortest distance in that time. So, that duck must have moved at the lowest speed.
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Answer the question truthfully.
A runner is increasing her speed on the final stretch of a race. Which statement describes the runner's motion? Choose from: The runner is accelerating., The runner has a constant velocity..
The runner is speeding up. So, the runner is accelerating.
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Answer the question truthfully.
Which is smoother? Choose from: burlap sack, silver ring.
Smooth is a property. A smooth material is not rough or bumpy. Look at each picture, one at a time. Imagine touching the material shown in each picture. Of the choices, the silver ring is smoother. If you touch a silver ring, it will not feel rough or bumpy.
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Answer the question truthfully.
The objects are identical except for their temperatures. Which object has more thermal energy? Choose from: a 5-kilogram block of copper at a temperature of 95°C, a 5-kilogram block of copper at a temperature of 50°C.
The two blocks of copper have the same mass but different temperatures. Since the 95°C block is hotter than the 50°C block, it has more thermal energy.
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Answer the question truthfully.
Compare the motion of two trains. Which train was moving at a lower speed? Choose from: a train that moved 835kilometers in 10hours, a train that moved 945kilometers in 10hours.
Look at the distance each train moved and the time it took to move that distance. One train moved 835 kilometers in 10 hours. The other train moved 945 kilometers in 10 hours. Notice that each train spent the same amount of time moving. The train that moved 835 kilometers moved a shorter distance in that time. So, that...
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The objects are identical except for their temperatures. Which object has less thermal energy? Choose from: a 120-gram bottle of water at a temperature of 10°C, a 120-gram bottle of water at a temperature of 20°C.
The two bottles of water have the same mass but different temperatures. Since the 10°C bottle of water is colder than the 20°C bottle of water, it has less thermal energy.
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A boy is lying still in his bed as he sleeps through the night. Which statement describes the boy's motion? Choose from: The boy has a constant velocity., The boy is accelerating..
The boy is remaining motionless. So, the boy has a constant velocity.
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Answer the question truthfully.
A clown on a unicycle is riding in a circle at a constant speed. Which statement describes the clown's motion? Choose from: The clown has a constant velocity., The clown is accelerating..
The clown is changing direction. So, the clown is accelerating.
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Answer the question truthfully.
Jim gives two friends a ride in his wagon. One friend sits in the wagon at a time. Jim starts to pull the wagon across the yard. To move the wagon at the same speed each time, which friend does Jim need to pull with a larger force? Choose from: a friend who weighs 33 pounds, a friend who weighs 30 pounds.
Look for the friend who is heavier. A friend who weighs 33 pounds is heavier than a friend who weighs 30 pounds. So, to move the wagon at the same speed each time, Jim needs to use a larger force to start moving the wagon with a friend who weighs 33 pounds.
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Kimi is sitting on a roller coaster cart as it reaches the bottom of a big loop. Earth's gravity is pulling down on Kimi with a force of 600N. The seat of the cart is pushing up on Kimi with a force of 1,200N. Assume all other forces on Kimi are balanced. Which statement describes the forces on Kimi? Choose from: The f...
To determine if there is a net force on Kimi, look at the forces: Earth's gravity is pulling Kimi down with a force of 600 N. The seat of the cart is pushing Kimi up with a force of 1,200 N. The forces are in opposite directions, and the forces have different magnitudes: 600 N and 1,200 N. This means that the forces ar...
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Terrell is standing on a diving board at the pool. Earth's gravity is pulling down on Terrell with a force of 400N. The diving board is pushing up on Terrell with a force of 400N. Assume all other forces on Terrell are balanced. Which statement describes the forces on Terrell? Choose from: The forces are balanced, so t...
To determine if there is a net force on Terrell, look at the forces: Earth's gravity is pulling Terrell down with a force of 400 N. The diving board is pushing Terrell up with a force of 400 N. The forces are in opposite directions, and the forces have the same magnitude: 400 N. This means that the forces are balanced,...
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The objects are identical except for their temperatures. Which object has less thermal energy? Choose from: a tray of lasagna at a temperature of 20°C, a tray of lasagna at a temperature of 10°C.
The two trays of lasagna have the same mass but different temperatures. Since the 10°C tray of lasagna is colder than the 20°C tray of lasagna, it has less thermal energy.
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Answer the question truthfully.
Which is the hardest? Choose from: rock, clay ball, nylon swim shorts.
Hard is a property. A hard material keeps its shape when you press on it with your finger. Look at each picture, one at a time. Imagine pushing on the material shown in each picture. Of the choices, the rock is the hardest. If you squeeze a rock, it will not change shape.
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Compare the motion of two sailboats. Which sailboat was moving at a higher speed? Choose from: a sailboat that moved 75kilometers in 5hours, a sailboat that moved 90kilometers in 5hours.
Look at the distance each sailboat moved and the time it took to move that distance. One sailboat moved 90 kilometers in 5 hours. The other sailboat moved 75 kilometers in 5 hours. Notice that each sailboat spent the same amount of time moving. The sailboat that moved 90 kilometers moved a farther distance in that time...
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Two empty mugs are identical except for their temperatures. Which empty mug has more thermal energy? Choose from: the colder empty mug, the hotter empty mug.
The two empty mugs are made of the same material and have the same mass. So, the hotter empty mug has more thermal energy.
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The objects are identical except for their temperatures. Which object has the least thermal energy? Choose from: a watermelon at a temperature of 75°F, a watermelon at a temperature of 85°F, a watermelon at a temperature of 83°F.
All three watermelons have the same mass but different temperatures. Since the 75°F watermelon is the coldest, it has the least thermal energy.
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Sophie is sliding a heavy dresser across the carpeted floor of her apartment. She is pushing the dresser forward with a force of 350N. The carpet is pushing the dresser backward with a force of 380N. Assume all other forces on the dresser are balanced. Which statement describes the forces on the dresser? Choose from: T...
To determine if there is a net force on the dresser, look at the forces: Sophie is pushing the dresser forward with a force of 350 N. The carpet is pushing the dresser backward with a force of 380 N. The forces are in opposite directions, and the forces have different magnitudes: 350 N and 380 N. This means that the fo...
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Answer the question truthfully.
Two cherry pies are identical except for their thermal energies. Which cherry pie has a higher temperature? Choose from: the cherry pie with more thermal energy, the cherry pie with less thermal energy.
The two cherry pies are made of the same material and have the same mass. So, the cherry pie with more thermal energy has a higher temperature.
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Kids from two different schools are riding their school buses home. The buses are the same. They are going the same speed. But different numbers of kids are riding in each bus. Each bus takes the same amount of time to stop. Which school bus needs a larger force to come to a stop? Choose from: a school bus carrying 500...
Look for the school bus that is heavier. A school bus carrying 550 pounds is heavier than a school bus carrying 500 pounds. So, the school bus carrying 550 pounds needs a larger force to come to a stop in the same amount of time as the other bus.
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Compare the motion of three motorboats. Which motorboat was moving at the lowest speed? Choose from: a motorboat that moved 340kilometers north in 5hours, a motorboat that moved 115kilometers east in 5hours, a motorboat that moved 280kilometers north in 5hours.
Look at the distance each motorboat moved and the time it took to move that distance. The direction each motorboat moved does not affect its speed. Notice that each motorboat moved for 5 hours. The motorboat that moved 115 kilometers moved the shortest distance in that time. So, that motorboat must have moved at the lo...
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Isaac Newton was born in the 1600s and studied how objects move. He discovered three fundamental laws about forces and motion. According to Newton's third law, for every force, there is an equal and opposite force. Consider the following force: Samantha's foot is pushing on her car's gas pedal. According to Newton's th...
Samantha's foot is pushing on the gas pedal. So, Newton's third law tells you that the gas pedal is pushing on Samantha's foot.
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There are many types of energy. One type is kinetic energy, which is the energy an object has when it is moving. Read the passage about a bike ride. Think about the kinetic energy of the person riding the bike. Ellen was training for a bike race. One afternoon, she grabbed her helmet and took her bike out to the street...
The kinetic energy of an object depends on the object's speed. So, a change in Ellen's speed is evidence of a change in her kinetic energy. This statement shows that Ellen's speed changed: When Ellen started pedaling her bike, she began moving along the street. This statement does not show that Ellen's speed changed: W...
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Compare the motion of two birds. Which bird was moving at a higher speed? Choose from: a bird that moved 5miles in 10hours, a bird that moved 40miles in 10hours.
Look at the distance each bird moved and the time it took to move that distance. One bird moved 40 miles in 10 hours. The other bird moved 5 miles in 10 hours. Notice that each bird spent the same amount of time moving. The bird that moved 40 miles moved a farther distance in that time. So, that bird must have moved at...
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Compare the motion of two blue whales. Which blue whale was moving at a higher speed? Choose from: a blue whale that moved 45miles in 5hours, a blue whale that moved 55miles in 5hours.
Look at the distance each blue whale moved and the time it took to move that distance. One blue whale moved 55 miles in 5 hours. The other blue whale moved 45 miles in 5 hours. Notice that each blue whale spent the same amount of time moving. The blue whale that moved 55 miles moved a farther distance in that time. So,...
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Select the mixture. Choose from: coins, salt.
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Compare the motion of three ducks. Which duck was moving at the highest speed? Choose from: a duck that moved 230miles east in 5hours, a duck that moved 225miles west in 5hours, a duck that moved 255miles east in 5hours.
Look at the distance each duck moved and the time it took to move that distance. The direction each duck moved does not affect its speed. Notice that each duck moved for 5 hours. The duck that moved 255 miles moved the farthest distance in that time. So, that duck must have moved at the highest speed.
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Compare the motion of three cars. Which car was moving at the lowest speed? Choose from: a car that moved 525kilometers east in 10hours, a car that moved 1,025kilometers south in 10hours, a car that moved 360kilometers west in 10hours.
Look at the distance each car moved and the time it took to move that distance. The direction each car moved does not affect its speed. Notice that each car moved for 10 hours. The car that moved 360 kilometers moved the shortest distance in that time. So, that car must have moved at the lowest speed.
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Two 10-kilogram buckets of water are identical except for their thermal energies. Which bucket of water has a higher temperature? Choose from: the bucket of water with less thermal energy, the bucket of water with more thermal energy.
The two buckets of water are made of the same material and have the same mass. So, the bucket of water with more thermal energy has a higher temperature.
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Compare the motion of two bowhead whales. Which bowhead whale was moving at a higher speed? Choose from: a bowhead whale that moved 45kilometers in 10hours, a bowhead whale that moved 80kilometers in 10hours.
Look at the distance each bowhead whale moved and the time it took to move that distance. One bowhead whale moved 80 kilometers in 10 hours. The other bowhead whale moved 45 kilometers in 10 hours. Notice that each bowhead whale spent the same amount of time moving. The bowhead whale that moved 80 kilometers moved a fa...
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Select the liquid. Choose from: umbrella, baseball cap, caramel sauce, stone statue.
Caramel sauce is a liquid. A liquid takes the shape of any container it is in. If you pour caramel sauce into a container, the caramel sauce will take the shape of that container. But the caramel sauce will still take up the same amount of space. A stone statue is a solid. A solid has a size and shape of its own. Stone...
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Which is smoother? Choose from: rock wall, glass marbles.
Smooth is a property. A smooth material is not rough or bumpy. Look at each picture, one at a time. Imagine touching the material shown in each picture. Of the choices, the glass marbles are smoother. Glass marbles do not feel rough or bumpy when you touch them.
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The objects are identical except for their temperatures. Which object has the least thermal energy? Choose from: a pencil at a temperature of 58°F, a pencil at a temperature of 67°F, a pencil at a temperature of 64°F.
All three pencils have the same mass but different temperatures. Since the 58°F pencil is the coldest, it has the least thermal energy.
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Read the text about an object in motion. On a snowy day, Susan rode her sled down a big hill. Complete the statement. Assume that the sled's mass did not change. The gravitational potential energy stored between the sled and Earth () as Susan rode down the hill. Choose from: stayed the same, increased, decreased.
Think about how the distance between the sled and the center of Earth changed. The bottom of the hill was lower than the point where Susan started sledding. As Susan rode toward the bottom of the hill, the distance between the sled and the center of Earth decreased. So, the gravitational potential energy stored between...
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Two bananas are identical except for their temperatures. Which banana has less thermal energy? Choose from: the hotter banana, the colder banana.
The two bananas are made of the same material and have the same mass. So, the colder banana has less thermal energy.
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Read the text about a person in motion. Mitch rode an escalator from the first floor to the second floor of a shopping mall. Complete the statement. Assume that Mitch's mass did not change. The gravitational potential energy stored between Mitch and Earth () as he rode the escalator. Choose from: increased, decreased, ...
Think about how the distance between Mitch and the center of Earth changed. The second floor is higher than the first floor. As he rode the escalator toward the second floor, the distance between Mitch and the center of Earth increased. So, the gravitational potential energy stored between Mitch and Earth increased as ...
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Answer the question truthfully.
A mom, a dad, and two kids are going for a walk. The mom and the dad each push one of the kids in a stroller. The strollers are the same. But the kids are different sizes. The mom and dad push the strollers at the same speed. Which stroller is pushed with a larger force? Choose from: a stroller with kid that weighs 22 ...
Look for the stroller that is heavier. A stroller holding a kid that weighs 28 pounds is heavier than a stroller holding a kid that weighs 22 pounds. So, the stroller holding the kid that weighs 28 pounds needs to be pushed with a larger force to start moving forward at the same speed as the other other stroller.
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Answer the question truthfully.
Compare the motion of two mountain bikers. Which mountain biker was moving at a higher speed? Choose from: a mountain biker who moved 170kilometers in 5hours, a mountain biker who moved 125kilometers in 5hours.
Look at the distance each mountain biker moved and the time it took to move that distance. One mountain biker moved 170 kilometers in 5 hours. The other mountain biker moved 125 kilometers in 5 hours. Notice that each mountain biker spent the same amount of time moving. The mountain biker who moved 170 kilometers moved...
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Answer the question truthfully.
Which is the hardest? Choose from: glass jar, cotton head band, burlap sack.
Hard is a property. A hard material keeps its shape when you press on it with your finger. Look at each picture, one at a time. Imagine pushing on the material shown in each picture. Of the choices, the glass jar is the hardest. If you gently squeeze glass, it will not change shape.
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Answer the question truthfully.
The objects are identical except for their temperatures. Which object has less thermal energy? Choose from: a 200-gram mug of cider at a temperature of 85°F, a 200-gram mug of cider at a temperature of 115°F.
The two mugs of cider have the same mass but different temperatures. Since the 85°F mug of cider is colder than the 115°F mug of cider, it has less thermal energy.
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Answer the question truthfully.
Select the liquid. Choose from: chair, baseball, water in a waterfall, air from a hair dryer.
A baseball is a solid. A solid has a size and shape of its own. If you hit a baseball with a bat, the baseball will still have a size and shape of its own. The air from a hair dryer is a gas. A gas expands to fill a space. A hair dryer uses a fan to blow warm air out. When the air leaves the hair dryer, the air expands...
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Answer the question truthfully.
Which is the stickiest? Choose from: leather belt, gum, silk kimono.
Sticky is a property. A sticky material easily attaches to other things. Look at each picture, one at a time. Imagine touching the material shown in each picture. Of the choices, the gum is the stickiest. If you step on chewed gum, it will stick to your foot.
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Answer the question truthfully.
Select the solid. Choose from: knife, vinegar, water droplets, water from a faucet.
Vinegar is a liquid. A liquid takes the shape of any container it is in. If you pour vinegar into a different container, the vinegar will take the shape of that container. But the vinegar will still take up the same amount of space. Water droplets are a liquid. A liquid takes the shape of any container it is in. If you...
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Answer the question truthfully.
Compare the motion of two motorboats. Which motorboat was moving at a higher speed? Choose from: a motorboat that moved 180kilometers in 5hours, a motorboat that moved 340kilometers in 5hours.
Look at the distance each motorboat moved and the time it took to move that distance. One motorboat moved 340 kilometers in 5 hours. The other motorboat moved 180 kilometers in 5 hours. Notice that each motorboat spent the same amount of time moving. The motorboat that moved 340 kilometers moved a farther distance in t...
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Answer the question truthfully.
The objects are made of the same type of matter. Two blocks of iron have the same temperature but different masses. Which block has less thermal energy? Choose from: the block of iron with less mass, the block of iron with more mass.
The two blocks of iron have the same temperature and are made of the same type of matter. So, the block of iron with less mass has less thermal energy.
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Answer the question truthfully.
Compare the motion of two mountain bikers. Which mountain biker was moving at a higher speed? Choose from: a mountain biker who moved 105kilometers in 5hours, a mountain biker who moved 135kilometers in 5hours.
Look at the distance each mountain biker moved and the time it took to move that distance. One mountain biker moved 135 kilometers in 5 hours. The other mountain biker moved 105 kilometers in 5 hours. Notice that each mountain biker spent the same amount of time moving. The mountain biker who moved 135 kilometers moved...
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Answer the question truthfully.
Compare the motion of three sailboats. Which sailboat was moving at the highest speed? Choose from: a sailboat that moved 15miles north in 5hours, a sailboat that moved 40miles north in 5hours, a sailboat that moved 45miles west in 5hours.
Look at the distance each sailboat moved and the time it took to move that distance. The direction each sailboat moved does not affect its speed. Notice that each sailboat moved for 5 hours. The sailboat that moved 45 miles moved the farthest distance in that time. So, that sailboat must have moved at the highest speed...
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Answer the question truthfully.
A boy is turning to the left as he rides a merry-go-round at a constant speed. Which statement describes the boy's motion? Choose from: The boy has a constant velocity., The boy is accelerating..
The boy is changing direction. So, the boy is accelerating.
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Answer the question truthfully.
Select the solid. Choose from: pair of scissors, water in a glass, grape juice, air from a hair dryer.
The air from a hair dryer is a gas. A gas expands to fill a space. A hair dryer uses a fan to blow warm air out. When the air leaves the hair dryer, the air expands to fill a much large space. A pair of scissors is a solid. A solid has a size and shape of its own. When you use a pair of scissors to cut paper, the pair ...
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Answer the question truthfully.
Which would smell more? Choose from: metal hair clip, perfume.
Smelly is a property. A smelly material has a strong smell. Look at each picture, one at a time. Imagine smelling the material shown in each picture. Of the choices, the perfume would smell more. Perfume has a strong smell.
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Answer the question truthfully.
Read the text about an object in motion. Mariana dropped a water balloon off a balcony. The water balloon fell toward her friend Nate, who was standing below the balcony. Complete the statement. Assume that the water balloon's mass did not change. The gravitational potential energy stored between the water balloon and ...
Think about how the distance between the water balloon and the center of Earth changed. Nate was lower than the balcony. As the water balloon fell toward Nate, the distance between the water balloon and the center of Earth decreased. So, the gravitational potential energy stored between the water balloon and Earth decr...
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Answer the question truthfully.
Select the mixture. Choose from: caramel corn, silver.
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Answer the question truthfully.
Two drops of dish soap are identical except for their thermal energies. Which drop of dish soap has a higher temperature? Choose from: the drop of dish soap with more thermal energy, the drop of dish soap with less thermal energy.
The two drops of dish soap are made of the same material and have the same mass. So, the drop of dish soap with more thermal energy has a higher temperature.
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Answer the question truthfully.
Which is the smoothest? Choose from: chalk, burlap sack, concrete sidewalk.
Smooth is a property. A smooth material is not rough or bumpy. Look at each picture, one at a time. Imagine touching the material shown in each picture. Of the choices, the chalk is the smoothest. If you touch a piece of chalk, it will not feel rough or bumpy.
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Answer the question truthfully.
The objects are identical except for their temperatures. Which object has more thermal energy? Choose from: a 225-gram glass of orange juice at a temperature of 20°C, a 225-gram glass of orange juice at a temperature of 15°C.
The two glasses of orange juice have the same mass but different temperatures. Since the 20°C glass of orange juice is hotter than the 15°C glass of orange juice, it has more thermal energy.
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Answer the question truthfully.
The objects are identical except for their temperatures. Which object has the least thermal energy? Choose from: a 220-gram bottle of water at a temperature of 54°F, a 220-gram bottle of water at a temperature of 50°F, a 220-gram bottle of water at a temperature of 73°F.
All three bottles of water have the same mass but different temperatures. Since the 50°F bottle of water is the coldest, it has the least thermal energy.
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Answer the question truthfully.
Compare the motion of three sailboats. Which sailboat was moving at the lowest speed? Choose from: a sailboat that moved 80kilometers west in 5hours, a sailboat that moved 40kilometers north in 5hours, a sailboat that moved 35kilometers north in 5hours.
Look at the distance each sailboat moved and the time it took to move that distance. The direction each sailboat moved does not affect its speed. Notice that each sailboat moved for 5 hours. The sailboat that moved 35 kilometers moved the shortest distance in that time. So, that sailboat must have moved at the lowest s...
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Answer the question truthfully.
Read the text about an object in motion. On a snowy day, Rita rode her sled down a big hill. Complete the statement. Assume that the sled's mass did not change. The gravitational potential energy stored between the sled and Earth () as Rita rode down the hill. Choose from: decreased, increased, stayed the same.
Think about how the distance between the sled and the center of Earth changed. The bottom of the hill was lower than the point where Rita started sledding. As Rita rode toward the bottom of the hill, the distance between the sled and the center of Earth decreased. So, the gravitational potential energy stored between t...
[ -0.2945442199707031, 0.32746565341949463, 0.5323789119720459, 0.5108713507652283, -0.5288955569267273, 0.3523968756198883, 0.0024040890857577324, -0.154555544257164, -0.4403052031993866, 0.7883901000022888, 0.15873664617538452, 0.07113294303417206, 0.80225670337677, 0.38575589656829834, ...
Answer the question truthfully.
Compare the motion of three sailboats. Which sailboat was moving at the lowest speed? Choose from: a sailboat that moved 55kilometers north in 5hours, a sailboat that moved 40kilometers east in 5hours, a sailboat that moved 45kilometers east in 5hours.
Look at the distance each sailboat moved and the time it took to move that distance. The direction each sailboat moved does not affect its speed. Notice that each sailboat moved for 5 hours. The sailboat that moved 40 kilometers moved the shortest distance in that time. So, that sailboat must have moved at the lowest s...
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Answer the question truthfully.
Two 500-gram bath towels are identical except for their temperatures. Which bath towel has less thermal energy? Choose from: the hotter bath towel, the colder bath towel.
The two bath towels are made of the same material and have the same mass. So, the colder bath towel has less thermal energy.
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Answer the question truthfully.
Read the text about an animal in motion. A horse was grazing at the top of a small hill. The horse got thirsty and ran toward a river at the bottom of the hill. Complete the statement. Assume that the horse's mass did not change. The gravitational potential energy stored between the horse and Earth () as the horse ran ...
Think about how the distance between the horse and the center of Earth changed. The bottom of the small hill is lower than the top of the hill. As the horse ran down the hill, the distance between the horse and the center of Earth decreased. So, the gravitational potential energy stored between the horse and Earth decr...
[ -0.4913966655731201, 0.6958571076393127, -0.04050719738006592, 0.20157508552074432, -0.2428104281425476, 0.04878910630941391, -0.2291376143693924, -0.3449517786502838, -0.20384375751018524, 0.5087528228759766, -0.28817832469940186, 0.6525323390960693, 0.5348329544067383, 0.5471675992012024...
Answer the question truthfully.
Cole gives two friends a ride in his wagon. One friend sits in the wagon at a time. Cole starts to pull the wagon across the yard. To move the wagon at the same speed each time, which friend does Cole need to pull with a larger force? Choose from: a friend who weighs 26 pounds, a friend who weighs 33 pounds.
Look for the friend who is heavier. A friend who weighs 33 pounds is heavier than a friend who weighs 26 pounds. So, to move the wagon at the same speed each time, Cole needs to use a larger force to start moving the wagon with a friend who weighs 33 pounds.
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Answer the question truthfully.
Compare the motion of two mountain bikers. Which mountain biker was moving at a higher speed? Choose from: a mountain biker who moved 95miles in 10hours, a mountain biker who moved 185miles in 10hours.
Look at the distance each mountain biker moved and the time it took to move that distance. One mountain biker moved 185 miles in 10 hours. The other mountain biker moved 95 miles in 10 hours. Notice that each mountain biker spent the same amount of time moving. The mountain biker who moved 185 miles moved a farther dis...
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Isaac Newton was born in the 1600s and studied how objects move. He discovered three fundamental laws about forces and motion. According to Newton's third law, for every force, there is an equal and opposite force. Consider the following force: David is pulling on a full suitcase. According to Newton's third law, what ...
David is pulling on the suitcase. So, Newton's third law tells you that the suitcase is pulling on David.
[ -0.11467466503381729, 0.541709303855896, 0.2558266818523407, 0.3168621361255646, 0.4054494798183441, 0.15864495933055878, 0.52237868309021, 0.035549942404031754, -0.15897363424301147, 0.4863883852958679, -0.2895919382572174, 0.6697760224342346, -0.45094823837280273, -0.3826237618923187, ...
Answer the question truthfully.
The objects are identical except for their temperatures. Which object has the most thermal energy? Choose from: a blueberry muffin at a temperature of 94°F, a blueberry muffin at a temperature of 99°F, a blueberry muffin at a temperature of 103°F.
All three blueberry muffins have the same mass but different temperatures. Since the 103°F muffin is the hottest, it has the most thermal energy.
[ 0.12824009358882904, -0.3218913972377777, -0.41479212045669556, -0.3680153787136078, 0.711724042892456, 0.08607551455497742, -0.32840344309806824, -0.6445330381393433, -0.11972688138484955, 0.6190426349639893, -0.22010068595409393, 0.06422659009695053, -0.7939597368240356, 0.27499502897262...
Answer the question truthfully.
The objects are identical except for their temperatures. Which object has the least thermal energy? Choose from: a 350-gram bath towel at a temperature of 21°F, a 350-gram bath towel at a temperature of 35°F, a 350-gram bath towel at a temperature of 18°F.
All three bath towels have the same mass but different temperatures. Since the 18°F towel is the coldest, it has the least thermal energy.
[ 0.11855264753103256, 0.576070249080658, -0.7505276799201965, 0.14718899130821228, 0.06324674934148788, -0.5031992197036743, 0.2960035800933838, -0.5099270343780518, 0.31081622838974, 0.23857533931732178, -0.27713748812675476, -0.2139636129140854, -0.10309509932994843, 0.16878272593021393, ...
Answer the question truthfully.
Read the text about a person in motion. Herman hiked up a tall mountain. He followed a trail all the way to the summit. Complete the statement. Assume that Herman's mass did not change. The gravitational potential energy stored between Herman and Earth () as he hiked toward the summit. Choose from: increased, stayed th...
Think about how the distance between Herman and the center of Earth changed. The summit of the mountain was higher than the point where Herman started hiking. As he hiked toward the summit, the distance between Herman and the center of Earth increased. So, the gravitational potential energy stored between Herman and Ea...
[ 0.37227487564086914, 0.6610396504402161, 0.7521302103996277, -0.12191450595855713, -0.4124978482723236, 0.062236540019512177, 0.132147878408432, 0.21006280183792114, -0.7580376267433167, 0.9565116763114929, 0.5248293280601501, 0.20658881962299347, 0.09669400751590729, -0.2902509570121765, ...
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Compare the motion of two ships. Which ship was moving at a higher speed? Choose from: a ship that moved 185miles in 5hours, a ship that moved 85miles in 5hours.
Look at the distance each ship moved and the time it took to move that distance. One ship moved 185 miles in 5 hours. The other ship moved 85 miles in 5 hours. Notice that each ship spent the same amount of time moving. The ship that moved 185 miles moved a farther distance in that time. So, that ship must have moved a...
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Which is harder? Choose from: glass flask, styrofoam packing peanuts.
Hard is a property. A hard material keeps its shape when you press on it with your finger. Look at each picture, one at a time. Imagine pushing on the material shown in each picture. Of the choices, the glass flask is harder. If you gently press on glass, it will not change shape.
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Which is harder? Choose from: clay tile, paper bag.
Hard is a property. A hard material keeps its shape when you press on it with your finger. Look at each picture, one at a time. Imagine pushing on the material shown in each picture. Of the choices, the clay tile is harder. If you step on clay tile, it will not change shape.
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Which would stretch more? Choose from: brick path, wool hat.
Stretchy is a property. A stretchy material gets longer when you pull on it. Look at each picture, one at a time. Imagine pulling on the material shown in each picture. Of the choices, the wool hat would stretch more. If you pull the sides of a wool hat, it will get wider.
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Which would stretch more? Choose from: rock, nylon swim shorts.
Stretchy is a property. A stretchy material gets longer when you pull on it. Look at each picture, one at a time. Imagine pulling on the material shown in each picture. Of the choices, the nylon swim shorts would stretch more. If you pull the leg opening on a pair of nylon swim shorts, it will get wider.
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The objects are identical except for their temperatures. Which object has the most thermal energy? Choose from: a 9-kilogram bucket of water at a temperature of 14°C, a 9-kilogram bucket of water at a temperature of 21°C, a 9-kilogram bucket of water at a temperature of 35°C.
All three buckets of water have the same mass but different temperatures. Since the 35°C bucket of water is the hottest, it has the most thermal energy.
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Isaac Newton was born in the 1600s and studied how objects move. He discovered three fundamental laws about forces and motion. According to Newton's third law, for every force, there is an equal and opposite force. Consider the following force: Colton is pushing on his friend's wheelchair. According to Newton's third l...
Colton is pushing on the wheelchair. So, Newton's third law tells you that the wheelchair is pushing on Colton.
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