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### 11 Cards in this Set

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 In how many ways can matter interact with eachother? Gravitationally, Magnetically, Electrically, and nuclear interactions Change in direction is an indicator of _______? an interaction What are some indicators of interactions? Change of direction, change of speed, change in velocity "Velocity", indicates a combination of _____ and ______. Speed; Direction ex. 1000 km/hr east The velocity of an object is represented by an _______. Arrow The _____ of the arrow is placed at the ______ of the object. And the arrow points in the _____ of the ______ of the object. tail; location; direction; motion Velocity is quantity and has a ______ (an amount or size) and a direction. magnitude Quantities which have a magnitude and direction can be called _________? Vectors Vectors are _________ quantities. Mathematical Motion with unchanging velocity is called "_______ ______". Uniform Motion If an object is in uniform motion, then there is no "____" (total) _______. net; total