ASPECt
Energy: Forms, Transformation, Transfer, and Conservation
Item RG001004: Doubling the speed would have the bigger impact on increasing the kinetic energy (motion energy) of a moving object because kinetic energy increases with the square of the speed
Which would have the bigger impact on increasing the kinetic energy (motion energy) of a moving object and why: doubling the mass of the object or doubling the speed of the object?
- Doubling the speed because the amount of kinetic energy an object has depends only on its speed, not on its mass
- Doubling the speed because even though kinetic energy depends on both the mass and speed of an object, kinetic energy increases with the square of the speed
- Doubling the mass because even though kinetic energy depends on both the mass and speed of an object, kinetic energy increases with the square of the mass
- Doubling the mass or speed would have the same effect because kinetic energy depends equally on the mass and the speed of an object.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 8432 |
4–5 n = 0 | 6–8 n = 4713 |
9–12 n = 3719 |
Male n = 4106 |
Female n = 4154 |
English n = 7302 |
Other n = 908 |
|
| A. | 18% | N/A | 20% | 15% | 19% | 17% | 18% | 16% |
| B. | 35% | N/A | 34% | 37% | 33% | 38% | 35% | 36% |
| C. | 23% | N/A | 22% | 24% | 23% | 22% | 23% | 24% |
| D. | 24% | N/A | 24% | 24% | 25% | 23% | 24% | 24% |