Question

rougher surface have​

Answer 1

Answer:

Rougher surfaces have more friction between them. Heavier objects also havemore friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbingsurfaces to move faster and have more energy.

Explanation:

A pair of rough surfaces will have more friction than a pair of smooth surfaces, because the “peaks” of onesurface can fall into the “valleys” of the other, meaning that to keep moving either something needs to break, or the surfaces would need to push apart briefly.

Answer 2

Answer:

Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.