11 terms

davenportrTEACHER

reference point

the starting point you choose to describe the location, or position, of an object

position

an object's distance and direction from a reference point

motion

the process of changing position

displacement

the difference between the initial (first) position and the final position of an object

speed

a measure of the distance an object travels per unit of time

constant speed

the rate of change of position in which the same distance is traveled each second

instantaneous speed

speed at a specific instant in time

average speed

the total distance traveled divided by the total time taken to travel that distance

velocity

the speed and the direction of a moving object

acceleration

a measure of the change in velocity during a period of time

average acceleration

a change in velocity during a time interval divided by the time interval during which the velocity changes