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Physics Intro
Motion
Question | Answer |
---|---|
physics | the study of matter and energy |
frame of reference | set of parameters used to describe an object's position and motion in time and space |
scalar quantity | quantity that only has magnitude |
vector quantity | quantity that has magnitude and direction |
speed | distance / time |
velocity | displacement / time |
meters | SI unit for distance |
seconds | SI unit for time |
distance | the total path of motion by an object |
displacement | the shortest path of motion by an object |
north and east | are considered positive directions |
south and west | are considered negative directions |