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motion,speed
key terms
Question | Answer |
---|---|
motion | the state in which one distance from another is changing |
reference point | a place or object used for comparion to determine if an object is in motion |
International System of Units | a system of measurement based on multiples of ten and on established measures of mass, length and time |
meter | the basic SI unit of length |
speed | the distance an object travels in one unit of time |
velocity | speed in a given direction |
acceleration | the rate at which velocity changes |
distance | how much ground you have covered |
displacement | the distance traveled by an object in a certain direction |