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14 Cards in this Set
- Front
- Back
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Speed |
a measure of the distance an object moves in a given amount of time |
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Velocity |
a measure of an object's speed and direction |
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acceleration |
the change in an object's velocity over a period of time |
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Newton |
a metric unit used to measure force |
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Work |
the result of a force applied to an object that causes it to move |
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energy |
the ability to do work |
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joule |
a metric unit used to measure work, equal to one newton meter |
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simple machine |
a device that makes work easier and which has few or no moving parts |
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lever |
a beam or bar that pivots on a fixed point |
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inclined plane |
a straight, slanted surface used to raise an object |
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fulcrum |
the point where a lever rotates or pivots |
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effort |
the force that is applied to a simple machine |
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load |
an object that resists the force applied to a simple machine |
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grade |
a measure of the steepness of a slope |
