Original Project
Energy: Forms, Transformation, Transfer, and Conservation
Item EG093001: The gravitational potential energy of an object depends on the object’s distance from the center of the earth but not the speed of the object.
The gravitational potential energy of an object depends on which of the following?
- Both the speed of the object and the object’s distance from the center of the earth
- The speed of the object but not the object’s distance from the center of the earth
- The object’s distance from the center of the earth but not the speed of the object
- Neither the speed of the object nor the object’s distance from the center of the earth
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 521
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1111 | 3244 | 34% |
| Grades | |||
| 6–8 | 556 | 1794 | 31% |
| 9–12 | 555 | 1440 | 39% |
| Gender | |||
| Male | 554 | 1564 | 35% |
| Female | 529 | 1601 | 33% |
| Primary Language | |||
| English | 989 | 2813 | 35% |
| Other | 91 | 325 | 28% |