ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item EG001008: 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.
- More information is needed to determine which ball has more kinetic energy.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||||
|---|---|---|---|---|---|---|---|---|---|
| n = 1337 |
4–5 n = 234 | 6–8 n = 644 |
9–12 n = 459 |
Male n = 667 |
Female n = 646 |
English n = 1187 |
Other n = 118 |
||
| A. | Ball 1 has more kinetic energy. | 13% | 12% | 14% | 12% | 14% | 11% | 12% | 17% |
| B. | Ball 2 has more kinetic energy. | 61% | 71% | 55% | 64% | 59% | 63% | 62% | 49% |
| C. | Both balls have the same amount of kinetic energy. | 12% | 7% | 13% | 12% | 11% | 13% | 11% | 17% |
| D. | More information is needed to determine which ball has more kinetic energy. | 14% | 9% | 18% | 12% | 15% | 13% | 14% | 17% |