Original Project
Energy: Forms, Transformation, Transfer, and Conservation
Item EG004004: 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 motion energy (kinetic 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 motion energy is the same the whole time.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 3116 |
6–8 n = 1948 |
9–12 n = 1157 |
Male n = 1509 |
Female n = 1551 |
English n = 2742 |
Other n = 305 |
||
| A. | When the car's speed is 30 miles per hour | 64% | 63% | 66% | 65% | 63% | 66% | 50% |
| B. | When the car's speed is 15 miles per hour | 15% | 15% | 15% | 13% | 17% | 14% | 20% |
| C. | When the car's speed is 0 miles per hour | 12% | 12% | 11% | 12% | 11% | 11% | 17% |
| D. | The car's motion energy is the same the whole time. | 9% | 9% | 8% | 9% | 8% | 8% | 12% |