Original Project
Energy: Forms, Transformation, Transfer, and Conservation
Item NG061002: 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 how thermal energy is transferred between the corn and the butter?
- Thermal energy is transferred both from the corn to the butter and from the butter to the corn.
- Thermal energy is transferred from the corn to the butter but not from the butter to the corn.
- Thermal energy is transferred from the butter to the corn but not from the corn to the butter.
- Thermal energy is not transferred between the corn and the butter.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||
|---|---|---|---|---|---|---|---|
| n = 2942 |
6–8 n = 1764 |
9–12 n = 1172 |
Male n = 1431 |
Female n = 1453 |
English n = 2639 |
Other n = 226 |
|
| A. | 35% | 34% | 37% | 33% | 36% | 35% | 37% |
| B. | 44% | 43% | 47% | 45% | 44% | 45% | 33% |
| C. | 13% | 16% | 10% | 14% | 13% | 13% | 19% |
| D. | 7% | 8% | 6% | 8% | 7% | 7% | 11% |