Question

Which force requires contact?

A. The force exerted by air as an object moves through it
B. The force produced by interactions between electronically charged objects
C. The forced produced by interactions between magnetic objects
D. The force of attraction between two masses

Answer 1

Answer is A. The force exerted by air as an object moves through it.

Answer 2

A

Explanation: A is a example of Air resistance force, which is a contact force.