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.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1749 | 3329 | 53% |
| Grades | |||
| 6–8 | 981 | 1935 | 51% |
| 9–12 | 762 | 1384 | 55% |
| Gender | |||
| Male | 838 | 1615 | 52% |
| Female | 880 | 1652 | 53% |
| Primary Language | |||
| English | 1558 | 2886 | 54% |
| Other | 151 | 349 | 43% |