Original Project
Weather and Climate I: Basic Elements
Processes that take place on the surface of the earth influence the composition and the temperature of the atmos…
Item NG058002: Energy is transferred when a person comes in contact with cold air, and energy is transferred when an electric generator is used to run a motor.
Consider the following situations:
Situation 1: A person comes in contact with cold air.
Situation 2: An electric generator is used to run a motor.
Is energy being transferred in either of these situations?
- Energy is transferred in both situations.
- Energy is NOT transferred in either situation.
- Energy is transferred when a person comes in contact with cold air, but energy is NOT transferred when an electric generator is used to run a motor.
- Energy is transferred when an electric generator is used to run a motor, but energy is NOT transferred when a person comes in contact with cold air.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1080 | 2916 | 37% |
| Grades | |||
| 6–8 | 639 | 1827 | 35% |
| 9–12 | 439 | 1080 | 41% |
| Gender | |||
| Male | 538 | 1430 | 38% |
| Female | 526 | 1439 | 37% |
| Primary Language | |||
| English | 971 | 2628 | 37% |
| Other | 82 | 212 | 39% |
- Disciplinary Core Ideas
- PS3.B Energy is spontaneously transferred out of hotter regions or objects and into colder ones.
- NRC Framework
- Grade 5 PS3.B Energy can also be transferred from place to place by electric currents, which can then be used locally to produce motion, sound, heat, or light. The currents may have been produced to begin with by transforming the energy of motion into electrical energy (e.g., moving water driving a spinning turbine which generates electric currents). (5, 125)