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device that makes work easier |
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two different sized wheels that turn together 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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Definition
machine that combines two simple machines or more. |
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