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12 Cards in this Set
- Front
- Back
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Effort
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the force that causes an object to move
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the force that resists the movement of objects against each other
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friction
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the force that pulls objects toward the earth
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gravity
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load
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the weight of the object being moved
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machine
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an object that makes work easier
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motion
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a change in an object's position
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a flat, sloped surface
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inclined plane
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a bar that turns on a point
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lever
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a wheel with a groove that can hold a rope
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pulley
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screw
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an inclined plane wound around an axle
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wedge
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one or more inclined planes used to force things apart
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a wheel with a rod running through it
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wheel and axle
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