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8 Cards in this Set
- Front
- Back
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relative
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Regarded in relation to something else. Depends on point of view, or frame of reference.
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speed
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How fast something is moving; the path distance moved per time. The magnitude of the velocity vector.
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instantaneous speed
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The speed at any instant of time.
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average speed
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Path distance divided by time interval.
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velocity
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Speed together with the direction of motion.
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acceleration
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The rate at which velocity is changing. The change may be in magnitude, direction or both.
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free fall
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Motion under the influence of the gravitational force only.
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elapsed time
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The time that has passed since the beginning of an event.
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