ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Conduction is the transfer of energy that occurs when a warmer object (or quantities of a solid, liquid or gas) …
Item NG024003: When a warm plastic block is in contact with a cold metal block, thermal energy will be transferred from the warm block to the cold block until they reach the same temperature.
The temperature of a plastic block is 60°F, and the temperature of a metal block is 40°F. A student puts the plastic block on top of the metal block. Will the blocks ever reach the same temperature? Why or why not?
- Yes, but only for a little while because the metal block will continue to get warmer and the plastic block will continue to cool
- Yes, because energy will be transferred from the plastic block to the metal block until they reach the same temperature
- No, because the temperature difference is not large enough for energy to be transferred
- No, because the blocks are made of different materials
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 497
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 3923 | 8992 | 44% |
| Grades | |||
| 4–5 | 244 | 794 | 31% |
| 6–8 | 1948 | 4482 | 43% |
| 9–12 | 1731 | 3716 | 47% |
| Gender | |||
| Male | 1960 | 4199 | 47% |
| Female | 1873 | 4582 | 41% |
| Primary Language | |||
| English | 3483 | 7876 | 44% |
| Other | 345 | 876 | 39% |