ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Energy can be transferred by electromagnetic radiation.
Item RG146001: Whether a metal plate is placed next to or above a light bulb (at the same distance) will not affect the amount of energy transferred to the metal plate by electromagnetic radiation.
A glowing light bulb gives off electromagnetic radiation in all directions as represented by the arrows in the figure below. Suppose a metal plate is placed near the light bulb.
Which of the following factors would NOT affect the amount of energy transferred to the metal plate by electromagnetic radiation?
- The distance between the light bulb and the metal plate
- The size of the metal plate
- The temperature of the light bulb
- Whether the metal plate is placed next to or above the light bulb (at the same distance)
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 495
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 524 | 1137 | 46% |
| Grades | |||
| 4–5 | N/A | N/A | N/A |
| 6–8 | 281 | 634 | 44% |
| 9–12 | 243 | 503 | 48% |
| Gender | |||
| Male | 251 | 516 | 49% |
| Female | 265 | 601 | 44% |
| Primary Language | |||
| English | 477 | 990 | 48% |
| Other | 38 | 123 | 31% |
- Disciplinary Core Ideas
- PS3.B Energy can also be transferred from place to place by electric currents, which can then be used locally to produce motion, sound, heat, or light. The currents may have been produced to begin with by transforming the energy of motion into electrical energy.
PS4.B When light or longer wavelength electromagnetic radiation is absorbed in matter, it is generally converted into thermal energy (heat). Shorter wavelength electromagnetic radiation (ultraviolet, X-rays, gamma rays) can ionize atoms and cause damage to living cells.