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Simple Machines. There are six basic simple machines.They are:Inclined planeWedgeScrewLeverWheel and axlePulley. Wedge. A wedge is actually a kind of inclined plane.Instead of using the smooth side of the inclined plane also use the pointed edges to do other work.. Screw . A screw is a simple tool. Actually, a screw is just an inclined plane that has been wrapped around a cylinder.A screw helps us attach things to each other when we build..
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