Motion Vocabulary

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acceleration
rate of change of velocity with time
constant speed
rate of change of a position in which the same distance in traveled each second
average speed
total distance traveled divided by total time taken
displacement
a vector that is the difference between the initial and final position of an object
instantaneous speed
speed at a specific instant in time
reference point
a starting point used to describe the position of an object
rise
the change in the value of the vertical coordinate between two points on a graph
run
the change in the value of the horizontal coordinate between two points on a graph
slope
a number describing how steep a plotted line on a graph is
speed
rate of change of position with time
vector
a quantity with both size and direction
velocity
speed in a certain direction