ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item EG001007: For two balls that have the same mass, the ball that is rolling faster has more motion energy.
Two identical balls are rolling down a hill. Ball 2 is rolling faster than Ball 1.
Which ball has more kinetic energy (motion energy)?
- Ball 1 has more kinetic energy.
- Ball 2 has more kinetic energy.
- Both balls have the same amount of kinetic energy.
- Neither ball has any kinetic energy.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||||
|---|---|---|---|---|---|---|---|---|---|
| n = 1402 |
4–5 n = 313 | 6–8 n = 664 |
9–12 n = 425 |
Male n = 657 |
Female n = 715 |
English n = 1227 |
Other n = 145 |
||
| A. | Ball 1 has more kinetic energy. | 11% | 12% | 12% | 8% | 13% | 9% | 11% | 10% |
| B. | Ball 2 has more kinetic energy. | 67% | 74% | 63% | 66% | 66% | 67% | 67% | 63% |
| C. | Both balls have the same amount of kinetic energy. | 19% | 12% | 20% | 21% | 16% | 21% | 18% | 24% |
| D. | Neither ball has any kinetic energy. | 4% | 3% | 4% | 4% | 4% | 3% | 4% | 3% |