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Scalar Measurements
include magnitude only- size
Examples: distance, speed
Vector measurements
include magnitude and direction. They can be negative.
Examples: displacement, velocity
Distance
the length of the path covered by a moving object
Displacement
the difference between an object’s initial position (xi) and its final position (xf). Displacement can be negative, depending on direction.
speed
how fast you go
Velocity
how fast you go
average speed
distance / time
average displacement
displacement / time