ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item EG010004: For two objects that weigh the same, the object with more motion energy is moving faster.
The kinetic energy (motion energy) of Object 1 is greater than the kinetic energy of Object 2. The objects have the same mass. Is Object 1 moving faster, slower, or at the same speed as Object 2?
- Object 1 is moving faster than Object 2.
- Object 1 is moving slower than Object 2.
- Object 1 is moving at the same speed as Object 2.
- More information is needed to compare the speeds of the objects.
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 469
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 641 | 1095 | 59% |
| Grades | |||
| 4–5 | N/A | N/A | N/A |
| 6–8 | 372 | 674 | 55% |
| 9–12 | 269 | 421 | 64% |
| Gender | |||
| Male | 321 | 520 | 62% |
| Female | 307 | 550 | 56% |
| Primary Language | |||
| English | 563 | 955 | 59% |
| Other | 67 | 112 | 60% |