Item NG079003: The motion energy of a book sliding across a table is transformed into thermal energy, not into a force.
A girl pushes 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 kinetic energy (motion energy) of the book?
- It was transformed into both a force and thermal energy.
- It was transformed into a force but not into thermal energy.
- It was transformed into thermal energy but not into a force.
- It was used up and was not transformed into a force or thermal energy.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
---|---|---|---|---|---|---|---|---|
n = 1771 |
4–5 n = 349 | 6–8 n = 839 |
9–12 n = 583 |
Male n = 811 |
Female n = 920 |
English n = 1615 |
Other n = 116 |
|
A. | 50% | 56% | 49% | 48% | 49% | 51% | 50% | 47% |
B. | 12% | 15% | 12% | 10% | 13% | 11% | 12% | 21% |
C. | 29% | 19% | 30% | 34% | 29% | 29% | 29% | 25% |
D. | 9% | 10% | 9% | 8% | 8% | 9% | 9% | 8% |