Question

8. Friction produces _______​

Answer 1

Explanation:

The amount of friction depends on the materials from which the two surfaces are made. The rougher the surface, the more friction is produced. Friction also produces heat. If you rub your hands together quickly, you will feel them get warmer.

Answer 2

Answer:

friction is a force that opposes motion b/w any surfaces that are touching..friction occurs bcoz no surface is perfectly smooth...rougher surfaces have more friction b/w them..

"friction produces heat bcoz it causes the molecules on rubbing surfaces to move faster and have more energy..."