The amount of friction that occurs when two blocks slide against each other depends on
A)how much they are pressed together.
B)the "stickiness" of atoms on their surfaces.
C)both
D)none of the above

Question

Quizplus · Accepted Answer

The amount of friction that occurs when two blocks slide against each other depends on both how much they are pressed together and the "stickiness" of atoms on their surfaces. The pressure between the two blocks affects the contact area and therefore affects the force of friction. The stickiness of the atoms on the surfaces affects the strength of the intermolecular forces involved in friction. Thus, both factors are important in determining the amount of friction.

The Amount of Friction That Occurs When Two Blocks Slide