Multiple choice

What is rolling friction?

  1. When a body slides on the surface of another body.

  2. When a body rolls over the surface of another body.

  3. When a body is kept stationary on another body.

  4. When a body is accelerating on the surface of another body.

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

Rolling friction occurs when a rounded object (like a ball or wheel) rolls over a surface instead of sliding across it. The contact point continuously changes, creating less resistance than sliding friction.