Original Project
Energy: Forms, Transformation, Transfer, and Conservation
Item NG047004: When a ball that is 80ºF is placed in a bucket of water that is 50ºF, thermal energy is transferred from the ball to the water until they are both at the same temperature.
The temperature of a clay ball is 80ºF and the temperature of the water in a bucket is 50ºF. A student places the clay ball into the bucket of water. Which of the following describes how thermal energy is transferred between the ball and the water?
- Thermal energy is transferred from the ball to the water until they are both at 55ºF.
- Thermal energy is transferred from the water to the ball until they are both at 55ºF.
- Thermal energy is transferred from the water to the ball until the ball is at 50ºF and the water is at 80ºF.
- No thermal energy would be transferred between the ball and the water, so the ball will stay at 80ºF and the water will stay at 50ºF.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 1254 | 2923 | 43% |
| Grades | |||
| 6–8 | 708 | 1807 | 39% |
| 9–12 | 545 | 1107 | 49% |
| Gender | |||
| Male | 619 | 1445 | 43% |
| Female | 610 | 1424 | 43% |
| Primary Language | |||
| English | 1163 | 2655 | 44% |
| Other | 68 | 200 | 34% |