Multiple choice

What type of force keeps a coaster on the tracks when going around a loop-the-loop?

  1. air resistance

  2. friction

  3. spring force

  4. centripetal force

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Centripetal force is the net force that acts on an object to keep it moving along a curved path. In a loop-the-loop, this force is provided by the track.