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A rigid bar that pivots about one point and that is used to move an object at a second point by a force applied at a third. |
Lever
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A metal fastener driven into wood or the like by rotating, especially by means of a screwdriver. |
Screw
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A piece of hard material with two inclined planes meeting, used for raising, holding, or splitting objects by applying a pounding or driving force, like a hammer |
Wedge
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A machine where one end of the line is pulled to raise a weight at the other end. |
Pulley
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A larger wheel connected to a smaller cylinder (the axle) and is fastened to the wheel so that they turn together. |
Wheel and Axle
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A simple machine used to alter the effort and distance involved in doing work, such as lifting. |
Inclined Plane
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To press upon or against (a thing) with force in order to move it away. |
Push
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To draw or tug at with force. |
Pull
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To cause to move around on an axis or about a center; rotate: to turn a wheel. |
Turn
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To cause to turn around rapidly, as on an axis; twirl; whirl: to spin a coin on a table. |
Spin
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To spring back from a surface in a lively manner: The ball bounced off the wall. |
Bounce
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To move to and fro or up and down quickly and repeatedly; quiver; tremble. |
Vibrate
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To move along a surface by revolving or turning over and over, as a ball or a wheel. |
Roll
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By or at the side of; near: Sit down beside me. |
Beside
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In, at, or to a higher place. |
Above
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