Descripciones de maquinas simples

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Lever: A straighboard on a point know os a fulcrum,hammer. Gears: Two toothed wheels fit togother either directly or though a chain, bicycle. Inclined plane: Can be used to alter the effor distance involved in doing work, such as lifting load, Wedge,screw. Wedge: Two inclined planes joined back to back. Are used to split things, kniffe. Screw: inclined plane allows the screw to move itself or to move forward or backward an object or material it when rotated, bolt. Pulley: A wheel that usually has a groove around the outside edge, crane, flag pole. Wheel and axle: Has a larger wheel connected by a smaller cylinder and is fastened to the wheel so that they turn together, Motorbike.