When you push or pull with a simple machine, you are applying a force and doing work. And, if you get more force out of a machine than you put into it, then that machine has a mechanical advantage.

Find out more about the inclined plane, the pulley and the screw. Find out more about three of the six simple machines: the inclined plane, the pulley and the screw. These simple machines make work ...

Push-pull workouts combine pushing and pulling exercises to help strengthen your upper body, balance your muscles, and ...