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6 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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A system of measurement based on multiples of ten and on established measures of mass, length, and time.
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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 the object travels per unit of time.
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velocity
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speed in a given direction`
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