Original Project
Energy: Forms, Transformation, Transfer, and Conservation
Item EG041003: 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 energy?
- The rubber band that is stretched a little has more elastic energy.
- The rubber band that is stretched a lot has more elastic energy.
- The rubber bands have the same amount of elastic energy no matter how much they are stretched.
- Neither rubber band has any elastic energy.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 2027 | 3265 | 62% |
| Grades | |||
| 6–8 | 1098 | 1807 | 61% |
| 9–12 | 920 | 1448 | 64% |
| Gender | |||
| Male | 945 | 1566 | 60% |
| Female | 1044 | 1620 | 64% |
| Primary Language | |||
| English | 1790 | 2826 | 63% |
| Other | 176 | 331 | 53% |