MOTION AND SIMPLE MACHINES
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13 Terms
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Motion
Change in position.
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Speed
How fast something moves.
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Acceleration
Change in speed or direction.
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Distance
How far something moves.
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Reference point
Used to see if something is moving.
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Simple machine
Tool that makes work easier.
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Lever
A bar that pivots on a fulcrum.
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Fulcrum
Support or pivot point of a lever.
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Pulley
Wheel with rope to lift loads.
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Inclined plane
Slanted surface to move things.
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Screw
Inclined plane wrapped around a rod.
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Wedge
Used for cutting or splitting.
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Wheel and axle
Helps objects roll with less friction.
Flashcards (51)