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a sloping ramp up which heavy loads can be raised

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a simple lifting 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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a short, slender, sharp-pointed metal pin with a raised helical thread running around it and a slotted head, used to join things together by being rotated so that it pierces wood or other material and is held tightly in place.

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A lever that has the fulcrum in the middle, and the load and effort on either side of the board.

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The fulcrum is at the end of the board, while the load is between the  effort, and fulcrum.

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A double sided wedge that can be placed on a object to slit it, or open something more easily.

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The least efficient of the 3, the effort is placed between the load, and the fulcrum.

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A pulley that changes the direction of the force on a rope or belt that moves along its circumference.

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A movable pulley is a pulley that is free to move up and down, and is attached to a ceiling or other object by two lengths of the same rope.

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A block and tackle is a system of two or more pulleys with a rope or cable threaded between them, usually used to lift or pull heavy loads.