ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item EG004005: A car has the most motion energy when it is traveling at the highest speed.
A man is driving a car. He slows down to stop at a stop sign.
When does the car have the most kinetic energy (motion energy)?
- When the car's speed is 30 miles per hour
- When the car's speed is 15 miles per hour
- When the car's speed is 0 miles per hour
- The car's kinetic energy is the same the whole time.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
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|---|---|---|---|---|---|---|---|---|---|
| n = 1375 |
4–5 n = 231 | 6–8 n = 588 |
9–12 n = 556 |
Male n = 645 |
Female n = 699 |
English n = 1184 |
Other n = 148 |
||
| A. | When the car's speed is 30 miles per hour | 71% | 80% | 67% | 72% | 70% | 72% | 72% | 64% |
| B. | When the car's speed is 15 miles per hour | 13% | 12% | 13% | 14% | 14% | 13% | 13% | 14% |
| C. | When the car's speed is 0 miles per hour | 8% | 5% | 10% | 8% | 9% | 8% | 8% | 10% |
| D. | The car's kinetic energy is the same the whole time. | 7% | 3% | 10% | 5% | 7% | 6% | 7% | 11% |