Original Project
Energy: Forms, Transformation, Transfer, and Conservation
Item NG079002: The motion energy of a book sliding across a table is transformed into thermal energy, not into a force.
A girl shoves a book, and it slides across a table. The book slows down and then stops. As the book moves, the book and the table get a little bit warmer. What happened to the motion energy (kinetic energy) of the book?
- It was transformed into a force but not into thermal energy.
- It was transformed into thermal energy but not into a force.
- It was transformed into both a force and thermal energy.
- It was used up and was not transformed into a force or thermal energy.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||
|---|---|---|---|---|---|---|---|
| n = 4440 |
6–8 n = 2755 |
9–12 n = 1669 |
Male n = 2156 |
Female n = 2200 |
English n = 3998 |
Other n = 328 |
|
| A. | 15% | 16% | 13% | 15% | 14% | 14% | 19% |
| B. | 29% | 26% | 33% | 30% | 27% | 29% | 26% |
| C. | 46% | 47% | 45% | 43% | 49% | 47% | 40% |
| D. | 11% | 12% | 9% | 11% | 10% | 10% | 15% |