Question

which of the following is a true statement about friction? a. friction only occurs when objects are in contact with each other. b. friction only occurs when objects are not in contact with each other. c. friction only occurs on earth. d. friction occurs when objects are in contact with each other or when objects are not in contact with each other.

Answer 1

Answer: A

Explanation: Something cannot cause friction if it isn't opposed by another force. Friction is simply the ability to rub something to create heat, energy, or movement.