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ch 4 physics

CHAPTER 4 PHYSICS VOCAB

QuestionAnswer
relative regarded in relation to something else. Depends on point of view, or frame of reference.
speed how fast something is moving; the path distance divided by time interval.
instantaneous speed speed at any instant of time
average speed path distance divided by time intervals
velocity speed together with the direction of motion
acceleration the rate at which velocity is changing. the change may be in magnitude direction or both.
free fall motion under the influence of gravitational force only
elapsed time the time that has passed since the beginning of the event.
Created by: Wardlaw
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