ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item EG048004: For two objects that are made up of the same type of molecule and the same number of molecules, the molecules of the object with more thermal energy have more motion energy.
Object 1 and Object 2 are both made up of the same type of molecule and the same number of molecules. Object 1 has more thermal energy than Object 2. Do the molecules of Object 1 have more, less, or the same amount of kinetic energy (motion energy) than the molecules of Object 2?
- The molecules of Object 1 have more kinetic energy than the molecules of Object 2.
- The molecules of Object 1 have less kinetic energy than the molecules of Object 2.
- The molecules of Object 1 have the same amount of kinetic energy as the molecules of Object 2.
- More information is needed to say anything about the kinetic energy of the molecules.
- Distribution of Responses
- Scale Score for Item Difficulty
(200[Easy]-800[Difficult]) - 506
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 579 | 1489 | 39% |
| Grades | |||
| 4–5 | N/A | N/A | N/A |
| 6–8 | 288 | 831 | 35% |
| 9–12 | 291 | 658 | 44% |
| Gender | |||
| Male | 282 | 714 | 39% |
| Female | 286 | 757 | 38% |
| Primary Language | |||
| English | 528 | 1350 | 39% |
| Other | 38 | 107 | 36% |
- Disciplinary Core Ideas
- PS3.A Temperature is a measure of the average kinetic energy of particles of matter. The relationship between the temperature and the total energy of a system depends on the types, states, and amounts of matter present.
- NRC Framework
- Thermal energy is the random motion of particles (whether vibrations in solid matter or molecules or free motion in a gas)...