ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item EG041004: For two identical rubber bands, the rubber band that is stretched more has more elastic energy.
A student has two identical rubber bands. She stretches each rubber band around two pegs so that one rubber band is stretched a little bit and the other rubber band is stretched a lot.
When the rubber bands are stretched, which rubber band has more elastic potential energy?
- The rubber band that is stretched a little has more elastic potential energy.
- The rubber band that is stretched a lot has more elastic potential energy.
- The rubber bands have the same amount of elastic potential energy no matter how much they are stretched.
- Neither rubber band has any elastic potential energy.
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 460
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1235 | 1885 | 66% |
| Grades | |||
| 4–5 | 229 | 338 | 68% |
| 6–8 | 513 | 773 | 66% |
| 9–12 | 493 | 774 | 64% |
| Gender | |||
| Male | 603 | 909 | 66% |
| Female | 601 | 935 | 64% |
| Primary Language | |||
| English | 1128 | 1718 | 66% |
| Other | 78 | 121 | 64% |