ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item RG024003: Any sound made by a guitar can cause the air in a room to vibrate, and these vibrations transfer energy from the guitar to a person's ear.
A musician is playing a guitar. The musician plucks one of the guitar strings, and it begins to vibrate back and forth. The vibration produces a sound.
Which of the following describes the transfer of energy from the guitar to the musician's ear while the sound is being produced?
- Energy is transferred from the guitar to the ear only if the sound is loud because only loud sounds can cause the air in the room to vibrate, and it is these vibrations that transfer energy.
- Any sound can cause the air in the room to vibrate, and these vibrations transfer energy from the guitar to the ear.
- The energy from the sound travels from the guitar to the ear independent of the air in the room. The air does not play a role in the transfer of energy.
- Energy is not transferred from the guitar to the ear because sound has nothing to do with energy.
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 488
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1884 | 3823 | 49% |
| Grades | |||
| 4–5 | 432 | 1013 | 43% |
| 6–8 | 711 | 1502 | 47% |
| 9–12 | 741 | 1308 | 57% |
| Gender | |||
| Male | 857 | 1778 | 48% |
| Female | 990 | 1949 | 51% |
| Primary Language | |||
| English | 1689 | 3401 | 50% |
| Other | 146 | 315 | 46% |