PRESENTATION OUTLINE
The lever
This simple machine can be used to lift a weight. It has a fulcrum, which can be located in the center, near the end or at the end.
Wedge
This simple machine can be used to split apart or hold a door open.
Screw
Examples of this machine are used to hold things together. It is made up of an inclined plane and a cylinder.
Inclined plane
A heavy object could be rolled up this simple machine, instead of lifting it straight up.
Wheel and axle
These two parts act as one simple machine. They roll and are found on cars, bikes, and wheelbarrows.
Pulley
A rope, a wheel with a group in it and a weight make up this simple machine. You can pull up or down on the rope to lift the weigh.
