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10 Cards in this Set
- Front
- Back
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motion
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the state in which one object's distance from another is changing
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reference point
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a place or object used for comparison to determine if an object is in motion
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international system of units
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the system of units used by scientists to measure the properties of matter
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meter
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the basic SI unit of length
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speed
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the distance an object travels per unit of time
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average speed
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the overall rate of speed at which an object moves
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instantaneous speed
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the speed of an object at one instant of time
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velocity
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speed in a given direction
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slope
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the steepness of a line on a graph
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acceleration
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the rate at which velocity changes
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