Simple machines

Simple machines

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Caption: Simple machines. A collection of household tools that use simple machine principles. All of those here are based on the lever. The principle of a lever is of mechanical advantage - a force applied at a given distance from a fulcrum (point of rotation) being magnified by being used at a point closer to the fulcrum. The lever-arm corkscrew (centre) also uses a helical screw. The tweezers (upper right) reduce the mechanical force applied, but apply it to a very small surface to grip tiny objects.

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Keywords: advantage, bottle opener, can opener, classical mechanics, clippers, common place, commonplace, convenience, corkscrew, domestic, ease, everyday, familiar, fulcrum, household, intensity, lever, leverage, machines, magnification, mechanical, multiplication, nail clipper, nut cracker, nutcracker, object, objects, physical, physics, principle, school science, science education, simple machine, tool, tools, tweezers

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