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Motion
What occurs when an object changes position
Relative Motion
Motion that occurs relative to one’s environment (ex. a person sitting still in a car moving at 55 mph)
Vector Quantity
A measurement/# containing both a magnitude and a direction
Distance
How far an object moves (in length)
Displacement
The distance and direction of an object’s change in position from a starting point (a vector quantity)
Speed
The distance an object travels per unit of time (Derived Unit)
Cannot be a negative value
Meters/Second
SI Unit for speed
S=D/T
Formula for Speed
Average Speed
Total distance traveled / Total time traveled
Instantaneous Speed
Speed measured at one particular point in time
Velocity
Speed with Direction [Formula: V=(Pf-Pi)/T]
Acceleration
A change in velocity