Machine
From Simple English Wikipedia, the free encyclopedia
In everyday life, a machine is a thing that helps a person to do something by using or changing energy. Many machines have moving parts, and usually increase force or change the direction of force.
The six "Simple Machines" are:
Compound machines are made up of two or more simple machines.
People have used machines since before there was history. Examples of machines are cars, robots, clocks, and even screws.