Motion is a change in (1.)____ with respect to a reference point.Distance and displacement,speed and velocity,and acceleration are ways to describe motion.Distance is a (2.)_____ Quantity having magnitude but no direction while (3.)____ is a vector quantity having both magnitude and direction.(4.)______ speed refers to the total distance travelled divided by the total time and (5.)_________ is displacement divided by by total time of travel.A (6.)_______ measures instananeous speed/velocity.(7.)______motion refers to to an object moving with constant speed or constant velocity.(8.)_________ is defined as the change in velocity in a time interval.Acceleration may change in any of the following conditions: when the velocity changes,when the (9.)____ of motion changes,or when both velocity and directionof motion changes. (10.)_______ is the opposite of acceleration where velocity of an object decreases.​