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| device that makes work easier |
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| two different-sized wheels that turn together and around the same point |
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| force applied to a machine |
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| force that opposes the effort force |
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| number of times a machine multiplies the effort force |
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| ideal mechanical advantage |
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Definition
| mechanical advantage a machine would have with no friction |
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| ratio of work output to work input |
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| bar that is free to turn around a fixed point |
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| fixed point around which a lever pivots or turns |
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| rope wrapped around a wheel |
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| machine that combines two simple machines or more |
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