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A rigid bar that rotates around a fixed point (fulcrum) to lift or move loads with less effort.

A flat surface set at an angle to the horizontal, used to ease the effort needed to raise or lower a load.

A system of pulleys consisting of fixed and movable pulleys that work together to make lifting easier.

Consists of a large diameter wheel attached to a smaller diameter axle, which when turned together can move or lift loads.

A screw inside a hollow pipe, used to raise water for irrigation or to remove bilge water from a ship's hull.

A wheel with a grooved rim around which a rope or chain can move to change the direction of a pulling force and therefore lift a load.

A system of levers working together to increase mechanical advantage.

A device using an incompressible fluid in a closed system to multiply force, applying Pascal's principle.

A piece of material, thick at one edge and tapering to a thin edge, that is driven between two objects or parts of an object to secure or separate them.

An inclined plane wrapped around a cylinder, which holds things together or lifts materials.

A rotating mechanical device that is used to store rotational energy to maintain a constant speed and to smooth out the delivery of power.

A device where a specially shaped wheel (cam) rotates to move or guide a rod (follower) in a specific pattern.

A threaded cylinder (worm) that meshes with a gear wheel (worm gear), typically used when a large speed reduction or a large torque increase is needed.

A series of gears that transmit rotational force, with the mechanical advantage depending on the ratio of their diameters.