SPEED: s=d/t VELOCITY;v=d/t with direction ACCELERATION:a=(vf-vi)/t
CONSTANT SPEED: speed that does not change
VELOCITY:speed in a given direction
FRAME OF REFERENCE: a background used to judge motion or speed
INSTANTANEOUS SPEED: speed at a given moment in time.
SPEED:amount of distance traveled in a certain amount of time
AVERAGE SPEED:total distance divided by total time
TIME DISTANCE GRAPH: graph thath shows speed of an object.
ACCELERATION:change in velocity over time
MOTION:an object changing position or distance in time
RATE OF CHANGE:amount of time it takes to change position or motion