Question

1. choose the best answer. the force of friction ____ when there is less surface area between objects. decreases increases

Explanation:

The force of friction is not dependent on the surface - area in contact between objects under normal circumstances. However, a common - sense understanding might lead one to think that less surface area means less contact and thus less friction. In reality, for dry friction, the force of friction is given by $F_f=\mu N$, where $\mu$ is the coefficient of friction and $N$ is the normal force, and is independent of surface area. But if we consider the context of a non - ideal situation where less surface area could mean less inter - molecular or inter - atomic interactions in some cases, we would say the force of friction decreases.

Answer:

decreases