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?

  1. Only the pull of the rope on the tire
  2. Only the pull of earth’s gravity on the tire
  3. Both the pull of the rope on the tire and the pull of earth’s gravity on the tire
  4. Neither the pull of the rope on the tire nor the pull of earth’s gravity on the tire

Distribution of Responses

Chart showing distrubtion of responses for Item FM054002

Percent of students responding correctly

Overall76%
Grades 6–873%
Grades 9–1279%
Male73%
Female78%
Primary Language is English76%
Primary Language is not English68%

View data table