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15 Cards in this Set
- Front
- Back
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compund machine
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combination of two or more simple machines
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efficiency
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measure of how much of the work put into a machine done by a machine
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inclined plane
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simple machinethat has a sloping surface
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lever
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simple machine made from a bar
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machine
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device that makes work easier
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mechanical advantage
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number of times a machine multiplies the effort force to it applied
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power
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the rate at which work is done
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pully
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simple machine that consistes of a grooved wheel with a rope or chain or cable that runs along the groove
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resistance
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force applied by a machine to overcome resistance
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screw
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simple machine that consists of an inclined plane wrapped in a spiral around a cylindrical post
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simple machine
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machine that does work with only one movement includes the lever, pully, wheel and axle, inclined plane, screw, and a wedge
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wedge
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simple machine that consists of an inclined plane with one or two sloping sides
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wheel and axle
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simple machine that consists of two different sized wheels that rotate together
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work
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transfer of energy that ocurs when a force makes an object move; measured in joules
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effort force
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force exerted on a machine that is used to do work
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