Original Project
Energy: Forms, Transformation, Transfer, and Conservation
Item EG056004: The thermal energy of an object depends on the speed and number of molecules that make up the object.
The thermal energy of an object depends on which of the following?
- Both the speed and the number of molecules that make up the object
- The speed of the molecules that make up the object but not the number of molecules
- The number of molecules that make up the object but not the speed of the molecules
- Neither the speed nor the number of molecules that make up the object
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 1633 |
6–8 n = 956 |
9–12 n = 671 |
Male n = 806 |
Female n = 802 |
English n = 1416 |
Other n = 172 |
||
| A. | Both the speed and the number of molecules that make up the object | 45% | 44% | 47% | 41% | 50% | 47% | 35% |
| B. | The speed of the molecules that make up the object but not the number of molecules | 25% | 24% | 26% | 27% | 23% | 25% | 22% |
| C. | The number of molecules that make up the object but not the speed of the molecules | 17% | 17% | 17% | 19% | 15% | 16% | 28% |
| D. | Neither the speed nor the number of molecules that make up the object | 12% | 14% | 10% | 13% | 12% | 12% | 15% |