ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item EG074003: The thermal energy of an object depends on the number and motion energy of the molecules that make up the object.
The thermal energy of an object depends on which of the following?
- Both the number and the average kinetic energy of molecules that make up the object
- The number of molecules that make up the object, but not their average kinetic energy
- The average kinetic energy of molecules that make up the object, but not the number of molecules
- Neither the average kinetic energy nor the number of molecules that make up the object
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||||
|---|---|---|---|---|---|---|---|---|---|
| n = 1238 |
4–5 n = 0 | 6–8 n = 647 |
9–12 n = 591 |
Male n = 596 |
Female n = 620 |
English n = 1053 |
Other n = 151 |
||
| A. | Both the number and the average kinetic energy of molecules that make up the object | 38% | N/A | 33% | 42% | 35% | 41% | 39% | 32% |
| B. | The number of molecules that make up the object, but not their average kinetic energy | 22% | N/A | 26% | 19% | 23% | 22% | 21% | 30% |
| C. | The average kinetic energy of molecules that make up the object, but not the number of molecules | 27% | N/A | 26% | 28% | 28% | 26% | 28% | 23% |
| D. | Neither the average kinetic energy nor the number of molecules that make up the object | 13% | N/A | 15% | 11% | 14% | 12% | 13% | 15% |