ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item EG003004: Two children that have the same mass and are sledding at the same speed have the same amount of motion energy.
A boy and a girl are sledding down a hill. The boy and the girl weigh the same, and they are using sleds that weigh the same.
If the boy and girl are sledding at the same speed, which child has more kinetic energy (motion energy)?
- The boy has more kinetic energy.
- The girl has more kinetic energy.
- Both of them have the same amount of kinetic energy.
- Neither the boy nor the girl has any kinetic energy.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||||
|---|---|---|---|---|---|---|---|---|---|
| n = 1419 |
4–5 n = 281 | 6–8 n = 623 |
9–12 n = 515 |
Male n = 704 |
Female n = 689 |
English n = 1238 |
Other n = 146 |
||
| A. | The boy has more kinetic energy. | 21% | 22% | 21% | 21% | 21% | 21% | 20% | 27% |
| B. | The girl has more kinetic energy. | 14% | 19% | 11% | 15% | 14% | 13% | 13% | 20% |
| C. | Both of them have the same amount of kinetic energy. | 60% | 56% | 62% | 59% | 58% | 62% | 61% | 49% |
| D. | Neither the boy nor the girl has any kinetic energy. | 5% | 3% | 6% | 5% | 6% | 5% | 6% | 4% |