PRESENTATION OUTLINE
Wedge
This simple machine
Can be used to split things
Apart or hold a door
Open.
Screw
Examples of this simple machine are used to hold things together.it is made up of an inclined plane wrapped around a cylinder.
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 of this simple machine.
Pulley
A rope,a wheel with a groove in it and a weight make up this simple machine.You can pull up or down on the rope to lift the weight.
Inclined plane
A heavy object could be rolled up this simple machine,instead of lifting it straight up.
