| A | B |
|---|
| Motion | when an object changes its position relative to a reference point. |
| Distance | how far an object has moved |
| meter | SI unit for length |
| Speed | distance an object travels per unit of time |
| Rate | any change over time. |
| Speed equation | Speed=distance/time |
| Constant speed | speed that doesn't change over time.... it stays the same |
| Average speed | speed of motion when speed is changing. |
| Average speed equation | total distance/total time |
| acceleration | rate of change of velocity |
| Graph of speed has distance | on y-axis |
| Graph of speed has time | on x-axis |
| Velocity | speed AND direction of an objects motion. |
| reference point | a place or object used fir comparision to determine if something is moving. |
| horizontal line on a graph | shows that motion has stopped (took a break) |
| Acceleration = | Vfinal - Vinitial / Time |
| decreasing speed is also known as | deceleration or negative acceleration |
| True | True or False: Changing direction is a type of acceleration |
| False | True or False: you accelerate as increase your speed |
