Original Project
Energy: Forms, Transformation, Transfer, and Conservation
Regardless of what happens within a system, the total amount of energy in the system remains the same unless ene…
Item NG099001: When skateboarding down a hill, gravitational potential energy is transformed into motion energy and thermal energy.
A girl is riding her skateboard down a hill. She speeds up as she goes down the hill, and the wheels get a little warmer.
What energy transformations happen while she is going down the hill?
- Motion energy (kinetic energy) is transformed into gravitational potential energy and thermal energy.
- Gravitational potential energy is transformed into motion energy (kinetic energy) and thermal energy.
- Gravitational potential energy is transformed only into motion energy (kinetic energy).
- No energy transformations are involved while she is going down the hill.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||
|---|---|---|---|---|---|---|---|
| n = 2995 |
6–8 n = 1903 |
9–12 n = 1080 |
Male n = 1459 |
Female n = 1483 |
English n = 2706 |
Other n = 213 |
|
| A. | 31% | 35% | 25% | 29% | 33% | 32% | 27% |
| B. | 46% | 42% | 53% | 47% | 45% | 46% | 38% |
| C. | 15% | 16% | 15% | 16% | 15% | 15% | 24% |
| D. | 8% | 8% | 7% | 8% | 7% | 7% | 12% |