which statement about simple machines is correct

Question

answer choices:

simple machines increase the amount of work done

simple machines always reduce the force needed to move a load

simple machines do not change the amount of work done but can reduce either force distance or both

simple machines always increase the distance that force is applied to do work

Answer 1

The correct statement about simple machines is:

Simple machines do not change the amount of work done but can reduce either force, distance, or both.

Simple machines make it easier to perform work by allowing a force to be applied over a longer distance, or by reducing the amount of force needed for a given distance, but they do not increase the total amount of work done.