Original Project
Energy: Forms, Transformation, Transfer, and Conservation
Item EG020003: For two objects that are the same distance from the center of the earth, the object with more gravitational potential energy weighs more.
Object 1 and Object 2 are the same distance from the center of the earth, but Object 1 has more gravitational potential energy than Object 2. Does Object 1 weigh more than, less than, or the same as Object 2?
- Object 1 weighs more than Object 2.
- Object 1 weighs less than Object 2.
- Object 1 weighs the same as Object 2.
- More information is needed to compare the weights of the objects.
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 494
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1547 | 3249 | 48% |
| Grades | |||
| 6–8 | 809 | 1797 | 45% |
| 9–12 | 734 | 1442 | 51% |
| Gender | |||
| Male | 740 | 1570 | 47% |
| Female | 774 | 1601 | 48% |
| Primary Language | |||
| English | 1365 | 2810 | 49% |
| Other | 138 | 331 | 42% |
- Disciplinary Core Ideas
- PS3.A A system of objects may also contain stored (potential) energy, depending on their relative positions.
- Notes
- The relationship between mass and gravitational potential energy is not addressed in NGSS.