Six Simple Machines

Lever

A lever is a machine consisting of a rigid bar resting on a pivot. When a downward force is applied on one side of the bar the other side elevates. An example of a lever would be a seesaw.

Inclined Plane

An inclined plane is a plane inclined at an horizontal angle. An example of an inclined plane would be a slide or a ramp.

Screw

A screw is a spirally grooved metal pin used to join things together by rotating it. An example of a screw would be the one explained but a jar lid also follows the same concept.
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