Original Project
Force and Motion
A moving object will maintain the same speed and direction of motion unless a force acts on it.
Item FM100001: It is possible for an object to be moving at constant speed without a force pushing or pulling it.
Is it possible for an object to move at constant speed without a force pulling or pushing it?
- No, a constant force is needed to keep an object moving at constant speed.
- No, a force is needed to keep an object moving at constant speed, but it doesn’t have to be a constant force.
- Yes, an object will move at constant speed unless a force acts to change its motion.
- Yes, an object will move at constant speed as long as the force inside the object doesn’t run out.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 3514 |
6–8 n = 2225 |
9–12 n = 1280 |
Male n = 1674 |
Female n = 1770 |
English n = 3170 |
Other n = 273 |
||
| A. | No, a constant force is needed to keep an object moving at constant speed. | 42% | 43% | 40% | 43% | 41% | 42% | 38% |
| B. | No, a force is needed to keep an object moving at constant speed, but it doesn’t have to be a constant force. | 19% | 20% | 18% | 19% | 20% | 19% | 24% |
| C. | Yes, an object will move at constant speed unless a force acts to change its motion. | 29% | 26% | 35% | 29% | 29% | 29% | 29% |
| D. | Yes, an object will move at constant speed as long as the force inside the object doesn’t run out. | 10% | 11% | 8% | 10% | 9% | 10% | 10% |