Original Project
Energy: Forms, Transformation, Transfer, and Conservation
Energy can be transferred from one system to another (or from a system to its environment) in different ways: by…
Item EG081002: Two objects that are moving at the same speed must have different masses in order to have different amounts of motion energy.
Two objects are moving at the same speed. The objects have different amounts of motion energy. Which of the following must be true?
- The objects are different sizes.
- The objects have different shapes.
- The objects have different masses.
- The objects are moving in different directions.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 1433 |
6–8 n = 866 |
9–12 n = 560 |
Male n = 709 |
Female n = 697 |
English n = 1265 |
Other n = 138 |
||
| A. | The objects are different sizes. | 19% | 20% | 16% | 20% | 18% | 19% | 15% |
| B. | The objects have different shapes. | 13% | 14% | 12% | 12% | 14% | 13% | 13% |
| C. | The objects have different masses. | 56% | 53% | 61% | 55% | 57% | 56% | 53% |
| D. | The objects are moving in different directions. | 12% | 13% | 11% | 13% | 12% | 11% | 19% |