ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item EG006006: When a person is riding a bike, the person has more motion energy than the bike because the person weighs more than the bike.
A man is riding his bike. The man weighs 150 pounds and the bike weighs 25 pounds.
Does the bike or the man have more kinetic energy (motion energy) and why?
- The bike has more kinetic energy than the man because the man is giving the bike his energy.
- The man has more kinetic energy than the bike because the man is alive but the bike is not.
- The man has more kinetic energy than the bike because the man weighs more than the bike.
- The bike and the man have the same amount of kinetic energy because they are traveling at the same speed.
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 539
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 325 | 1439 | 23% |
| Grades | |||
| 4–5 | 46 | 310 | 15% |
| 6–8 | 120 | 575 | 21% |
| 9–12 | 159 | 554 | 29% |
| Gender | |||
| Male | 172 | 677 | 25% |
| Female | 143 | 732 | 20% |
| Primary Language | |||
| English | 270 | 1234 | 22% |
| Other | 43 | 167 | 26% |