Original Project
Energy: Forms, Transformation, Transfer, and Conservation
Item EG023002: Both a ball that is thrown and a ball that is dropped have motion energy while they are moving.
A girl and a boy are each holding a ball. The girl throws her ball, and the boy drops his ball. Which statement describes the motion energy (kinetic energy) of the balls while they are moving through the air?
- Both the ball that was thrown and the ball that was dropped have motion energy.
- The ball that was thrown has motion energy, but the ball that was dropped does not.
- The ball that was dropped has motion energy, but the ball that was thrown does not.
- Neither the ball that was thrown nor the ball that was dropped has motion energy.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
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|---|---|---|---|---|---|---|---|---|
| n = 3329 |
6–8 n = 1935 |
9–12 n = 1384 |
Male n = 1615 |
Female n = 1652 |
English n = 2886 |
Other n = 349 |
||
| A. | Both the ball that was thrown and the ball that was dropped have motion energy. | 53% | 51% | 55% | 52% | 53% | 54% | 43% |
| B. | The ball that was thrown has motion energy, but the ball that was dropped does not. | 25% | 26% | 25% | 25% | 26% | 25% | 26% |
| C. | The ball that was dropped has motion energy, but the ball that was thrown does not. | 13% | 14% | 12% | 14% | 13% | 13% | 17% |
| D. | Neither the ball that was thrown nor the ball that was dropped has motion energy. | 9% | 9% | 8% | 9% | 8% | 8% | 14% |