ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item EG077002: When comparing two identical cars, the car that has more motion energy is moving faster than the car that has less motion energy.
Two cars that are the same size, shape, and weight are traveling down a road. Car 1 has more kinetic energy (motion energy) than Car 2.
Is Car 1 moving faster, slower, or at the same speed as Car 2?
- Car 1 is moving faster than Car 2.
- Car 1 is moving slower than Car 2.
- Car 1 is moving at the same speed as Car 2.
- More information is needed to compare the speeds of the cars.
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 472
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 625 | 1150 | 54% |
| Grades | |||
| 4–5 | N/A | N/A | N/A |
| 6–8 | 334 | 626 | 53% |
| 9–12 | 291 | 524 | 56% |
| Gender | |||
| Male | 288 | 563 | 51% |
| Female | 320 | 563 | 57% |
| Primary Language | |||
| English | 564 | 1007 | 56% |
| Other | 45 | 112 | 40% |