| A | B |
|---|
| distance | meters, kilometers, miles, feet |
| time | seconds, minutes, hours |
| speed | rate of movement; miles per second or kilometers per hour |
| velocity | speed in a given direction |
| acceleration | a change in speeding up; velocity over a period of time |
| motion | a change in the positiojn of an object |
| displacement | distance and direction of an object's change in position |
| speed | the rate at which an object moves (m/s, km/hr) |
| instantaneous speed | speed at a given point in time (slope = rise/run) |
| average speed | total distance / total time; the acceleration the earth causes on a body |
| slope | rise / run |
| constant speed | the speed stays the same throughout the entire distance |
| initial velocity | beginning speed in a given direction |
| final velocity | ending speed in a given direction |
| decceleration | slowing down |
| free fall | drop, from rest |
| acceleration due to gravity | the acceleration the earth causes on a body |
| rate | speed |
| frame of reference | an object or background to which motion is compared |
| position | the place of reference, the pont at which motion is compared; where something is located in the frame of reference |
