Simple machine A device that either multiplies or redirects a force Force A push or pull on an object in order to change its velocity Mechanical Advantage The amount by which force or motion is magnified in a simple machine Diameter The length of a straight line that travels from one side of a circle to another and passes through the center of the circle Circumference The distance around a cirlce equal to 3.1416 times the circle's diameter Mod 4 Vocab
Lab Report 
Who's Who 
Scientific Method 