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Chapter 11 Vocabulary

frame of reference the necessary ingredient of a description of a form of motion.
relative motion movement in relation to a frame of reference.
distance length of a path between two points.
vector quantity that has magnitude and direction.
resultant vector the vector sum of two or more vectors.
speed the ratio of distance an object moves to the amount of time the object moves.
average speed how fast something moved the entire trip.
instantaneous speed the rate that an object is moving at a given moment of time.
velocity the speed and time that an object is moving in.
acceleration the rate at which a velocity changes.
free fall acceleration due to a change in speed.
constant acceleration a steady change in velocity.
linear graph the displayed data forms straight line parts.
nonlinear graphs accelerated motion represented by a curved line on a distance-time graph.
Created by: evan.voyk