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10 Cards in this Set
- Front
- Back
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Work
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The product of force applied to an object multiplied by the distance of an object moved
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Joule
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The SI unit of energy, equal to 1 newton - meter of work
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Mechanical Advantage
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The amount by which a machine magnifies effort
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Efficiency
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The percent of work input returned as useful output
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Resistance arm
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The distance from the fulcrum to the resistance
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Torque
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Occurs when the law of moments is not being met
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Lever
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A rigid bar capable of turning about a fulcrum
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Scientific Idealization
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Using the power of 10 to express very large or very small numbers
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Block and Tackle
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An arrangement of fixed and moveable pulleys connected by ropes, and has a high mechanical advantage
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Pulley
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A modified lever consisting of a rope that moves around a grooved wheel, can be moveable or fixed
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