Original Project
Force and Motion
A force is a push or a pull between two objects.
Item FM054002: For a tire swing hanging from a tree, both the force of gravity and the force of the rope on the tire are forces acting on the tire.
A tire swing can be made by tying a car tire to a rope and then tying the rope to a tree branch. What are the forces acting on the tire in the tire swing shown below?
- Only the pull of the rope on the tire
- Only the pull of earth’s gravity on the tire
- Both the pull of the rope on the tire and the pull of earth’s gravity on the tire
- Neither the pull of the rope on the tire nor the pull of earth’s gravity on the tire
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 3557 |
6–8 n = 2259 |
9–12 n = 1288 |
Male n = 1697 |
Female n = 1787 |
English n = 3202 |
Other n = 283 |
||
| A. | Only the pull of the rope on the tire | 7% | 8% | 5% | 6% | 8% | 7% | 14% |
| B. | Only the pull of earth’s gravity on the tire | 15% | 16% | 14% | 19% | 12% | 15% | 15% |
| C. | Both the pull of the rope on the tire and the pull of earth’s gravity on the tire | 76% | 73% | 79% | 73% | 78% | 76% | 68% |
| D. | Neither the pull of the rope on the tire nor the pull of earth’s gravity on the tire | 2% | 2% | 2% | 2% | 2% | 2% | 3% |