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18 Cards in this Set
- Front
- Back
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Work
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is done when a force makes an object move in the same direction as the force that is applied
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power
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how quickly work is done
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Unit for work
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joules
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unit for power
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watts
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unit for force
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newtons
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unit for MA
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trick question, there is no unit for MA
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efficiency
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the ratio of the output work to the input work
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input force
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the force that you apply on a machine
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mechanical advantage
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the number of times that a machine increases the input force
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output force
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the force that a machine applies
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compound machine
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a machine made up of more than one simple machine
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inclined plane
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a flat, sloped surface
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lever
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any stiff rod or plank that turns around a point
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pulley
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a grooved wheel with a rope or cable wrapped over it
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screw
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an inclined plane wrapped around a cylinder or post
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simple machine
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a machine that odes work with only one movement
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wedge
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an inlcined plane that moves
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wheel and axle
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two round objects of different sizes that are attached so they turn together
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