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 NG026004: While a student holds a cold piece of metal in her hand, the metal will get warmer because thermal energy is transferred from warm objects to cold objects when the objects are touching each other.
A student is holding a cold piece of metal in her hand. While she is holding the piece of metal, her hand gets colder. Does the piece of metal get warmer or colder and why?
- Colder, because all objects give off energy all the time and gradually cool down
- Warmer, because some energy is transferred from cold objects to warm objects when the objects are touching each other
- Warmer, because some energy is transferred from warm objects to cold objects when the objects are touching each other
- Neither, because an equal amount of energy is exchanged between warm objects and cold objects when the objects are touching each other
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 493
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 633 | 1369 | 46% |
| Grades | |||
| 4–5 | 91 | 233 | 39% |
| 6–8 | 299 | 680 | 44% |
| 9–12 | 243 | 456 | 53% |
| Gender | |||
| Male | 280 | 611 | 46% |
| Female | 338 | 720 | 47% |
| Primary Language | |||
| English | 569 | 1200 | 47% |
| Other | 48 | 129 | 37% |