| A | B |
|---|
| frame of reference | movement compared with a background that is assumed to be stationary - What is the name of the background? |
| Earth | most common frame of reference |
| motion | change in position during a certain amount of time relative to a frame of reference |
| speed | rate at which an object moves |
| speed | distance traveled per unit of time |
| D/T | formula for speed |
| constant speed | speed that does not change |
| velocity | speed in a given direction |
| acceleration | rate of change in velocity |
| speeding up, slowing down or changing direction | an object that is accelerating is doing one of what 3 things |
| slope | steepness of a line on a graph |
| object is not moving | significance of a horizontal line on a graph showing distance vs. time |
| reference point | a place or object used for comparison to determine if something is in motion |
| average speed | the total distance traveled divided by the total time |
| negative acceleration | another term for slowing down |
| reference point | place or object used for comparison to determine if something is in motion |
