ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item NG061003: When cold butter is placed on top of hot corn, thermal energy is transferred from the corn to the butter but not from the butter to the corn.
A cook heats an ear of corn in a pot of hot water. She takes the corn out of the hot water and puts it on a plate. Then she takes some butter out of the refrigerator. She cuts a piece of cold butter and places it on top of the hot corn.
Which of the following describes the transfer of energy between the corn and the butter?
- Energy is not transferred between the corn and the butter.
- Energy is transferred from the butter to the corn but not from the corn to the butter.
- Energy is transferred from the corn to the butter because the corn is hotter than the butter.
- Energy is transferred from the corn to the butter because the corn is a lot bigger than the piece of butter.
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 453
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 899 | 1298 | 69% |
| Grades | |||
| 4–5 | 152 | 227 | 67% |
| 6–8 | 436 | 651 | 67% |
| 9–12 | 311 | 420 | 74% |
| Gender | |||
| Male | 427 | 645 | 66% |
| Female | 456 | 627 | 73% |
| Primary Language | |||
| English | 805 | 1127 | 71% |
| Other | 80 | 144 | 56% |