Power

the rate at which work is done

Transfer

to move one place to another

Work

is the transfer of energy to an object by a force that makes an object move in the direction of the force

Efficiency

Ratio of the output work to the input work

Mechanical Advantage

is the ratio of a machine's output force produced to the input force applied

Fulcrum

the point about which a lever pivots

Inclined Plane

is a flat sloped plane

Pulley

a simple machine that is a grooved wheel

Lever

a simple machine made up of a bar that pivots about a fixed point

Screw

is an inclined plane wrapped around a cylinder

Simple machine

it does work only using one movement

Wedge

a sloped surface that moves

Wheel and Axle

is a axle attached to a wheel that rotates together