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14 Cards in this Set
- Front
- Back
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Lever
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A bar that pivots on a fulcrum. A part of a simple machine used to raise heavy weights.
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Work
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Moving something over a distance.
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Repulsion
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Pushing
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Motion
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Moving, changing position.
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Machine
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Anything that helps people do work.
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Friction
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A force that opposes motion when two surfaces rub against each other. (Groundball)
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Attraction
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Pulling
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Power
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The amount of work done for each unit of time.
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Magnetism
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The force or repulsion or attraction between poles of magnets.
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Gravitation
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the force that pulls all objects in the univers toward each other.
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Force
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Any push or pull that causes an object to move, stop or change direction.
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Fulcrum
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The point or support on which a lever turns.
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Speed
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A measure of distance an object moves in a given amount of time.
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Distance
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The extent of space between two points or things.
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