Simple Machines
A sloping surface used to raise objects
What is an inclined plane?
A device that makes work easier
What is a simple machine?
A bar that is free to turn about a fixed point
What is a lever?
An inclined plane wrapped in a spiral around a cylindrical post
What is a screw?
The fixed point of a lever
What is a fulcrum?
A grooved wheel with a rope or chain running along the groove
What is pulley?