lever
a simple machine that gives a mechanical advantage when given a fulcrum
pulley
a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
wedge
something solid that is usable as an inclined plane (shaped like a V) that can be pushed between two things to separate them
screw
a simple machine of the inclined-plane type consisting of a spirally threaded cylindrical rod that engages with a similarly threaded hole
inclined plane
a simple machine for elevating objects; consists of plane surface that makes an acute angle with the horizontal
block and tackle
pulley blocks with associated rope or cable
