6 Simple Machines

melissa.w 8-3

1. Lever

A bar used to help move a heavy load on one end when pressure is applied to another.
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2. Wheel & Axle

a simple machine consisting of a rope that unwinds from a wheel onto a cylindrical drum or shaft joined to the wheel to provide mechanical advantage.
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3. Inclined Plane (ramp)

a plane inclined at an angle.
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4.Pulley

A wheel with a grooved around which the cord moves in. The force of direction changes when the cord is pulled the other way.
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5.Wedge

A piece of wood or other materials with one large end and one small end, used to separate an object.
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6.Screw

A metal, sharp pointed object used to hold two pieces of material tightly in place.
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