ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item RG052003: The more a rubber band is stretched the more energy it has.
A girl and a boy find two rubber bands that are exactly the same. They each stretch a rubber band between their fingers. The girl stretches her rubber band as far as she can without breaking it. The boy stretches his rubber band a little less than the girl.
After the rubber bands are stretched, which one has more energy and why?
- The girl’s rubber band has more energy because it is stretched more than the boy’s rubber band.
- The boy’s rubber band has more energy because it can still be stretched farther, but the girl’s rubber band is stretched as far as it can go.
- Both rubber bands have the same amount of energy because the amount of energy a rubber band has is not related to how much it is stretched.
- Neither one of the rubber bands has any energy because the rubber bands are not moving.
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 456
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 2423 | 3693 | 66% |
| Grades | |||
| 4–5 | 501 | 761 | 66% |
| 6–8 | 1004 | 1497 | 67% |
| 9–12 | 918 | 1435 | 64% |
| Gender | |||
| Male | 1139 | 1719 | 66% |
| Female | 1218 | 1866 | 65% |
| Primary Language | |||
| English | 2195 | 3306 | 66% |
| Other | 163 | 270 | 60% |