Question

what do we call the force that is put into a machine? output force input force (also called effort force)

Explanation:

In physics, when considering forces related to machines, the force applied to a machine is called the input force (or effort force). The output force is the force exerted by the machine. Since the question asks for the force put into a machine, it refers to the input force.

Answer:

input force (also called effort force)