Which statement about simple machines is correct?(1 point)

Question

Responses

Simple machines do not change the amount of work done
Simple machines do not change the amount of work done

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

Simple machines always reduce the force needed to move a load.
Simple machines always reduce the force needed to move a load.

Simple machines increase the amount of work done.

Answer 1

The correct statement about simple machines is:

Simple machines do not change the amount of work done.

Simple machines can change the way work is done (by changing the direction of the force or the distance over which it is applied) but they do not change the total amount of work, as work is defined as the product of force and distance.