How do simple machines make work easier?
A. They reduce the amount of force needed to move an object to de the same amount of work
B. They decrease the distance needed between a person and an object, allowing the person to apply more force and do more work
C. they increase the distance over which a force is needed, doing more work with less force.
D. They magnify the force being applied, thereby decreasing the work they can do with no extra energy exerted by the person using the machine