ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item RG196001: Chemical energy is transformed into kinetic energy (motion energy) in a battery operated watch.
A woman places a new battery in a watch. A chemical reaction takes place inside the battery that causes the hands on the watch to move.
Which of the following describes how energy changes while the watch hands move?
- Kinetic energy (motion energy) is created by the movement of the watch hands.
- Kinetic energy (motion energy) is transformed into chemical energy.
- Chemical energy is transformed into kinetic energy (motion energy).
- Energy does not change because chemical reactions transform matter not energy.
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 482
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 2147 | 4131 | 52% |
| Grades | |||
| 4–5 | 176 | 499 | 35% |
| 6–8 | 926 | 1897 | 49% |
| 9–12 | 1045 | 1735 | 60% |
| Gender | |||
| Male | 1000 | 1877 | 53% |
| Female | 1076 | 2126 | 51% |
| Primary Language | |||
| English | 1947 | 3741 | 52% |
| Other | 135 | 266 | 51% |