Question

the mechanical advantage of a machine may be less than, equal to, or greater than 1.
a true
b false

Explanation:

Mechanical advantage is the ratio of the output force to the input force. In real - world machines (with friction), the mechanical advantage can be less than 1. In ideal machines (no friction), it can be equal to 1. Some machines (like levers in certain set - ups) can have a mechanical advantage greater than 1.

Answer:

A. TRUE