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Science

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
Free Fall   Motion that is only under the influence of gravity  
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Velocity   Speed together with the direction of motion, change in displacement per time interval  
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Speed   How fast something is moving  
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Magnitude   The size of what you're measuring.  
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Motion   Change in an objects position relative to a given observer during a certain amount of time.  
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Reference Frame   includes an object of reference, a coordinate system, a coordinate system with a scale for measuring distance and a clock for measuring time.  
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Linear Motion   Model of motion that assumes that an object moves along a straight line  
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Position   location of an object with respect to a particular reference point  
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displacement   distance and direction between starting and ending points.  
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distance   how far an object traveled without regard for direction  
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instantaneous velocity   the velocity of an object at any instant in time  
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average velocity   total change in displacement during a specific time interval  
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constant velocity   The change in displacement is the same for each time interval  
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acceleration   change in velocity per time interval  
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constant acceleration   the change in velocity is the same for each time interval  
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