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There are six simple machines that provide mechanical advantage: the inclined plane, wedge, screw, lever, wheel and axle, and pulley. A simple machine changes the direction or magnitude of a force. Examples of simple machines include ramps, axes, screws, hammers, wagons, and flags on poles. There are three types of levers: first-class levers have the fulcrum between the force and load, second-class levers have the fulcrum at one end with the force and load on opposite sides, and third-class levers have the

Author

Harold Lim

Language

EN