Pulleys:A pulley is a simple machine that uses grooved wheels and a rope to use less force.
Lever: this is a pole that you can pull down or up to make something happen.
Wedge:this is a tool that should have more than one slanted side on it.
Wheel and axle:A wheel with a rod, called an axle, through its center lifts or moves loads.
Inclined plane:is a slanting surface connecting to a lower surface or higher.
Screw: is a inclined plane with a pole through it
Formula for medical advantage:p=w/t. Power=work/time