| A | B |
|---|
| speed = | distance / time |
| units of speed | m/s |
| units of time | secs |
| units of distance | m |
| average | mean |
| distance = | speed x time |
| time = | distance/ speed |
| horizontal force | friction |
| speed up | accelerate |
| slow down | decelerate |
| acceleration is dependant on | force and mass |
| bodies adapted to swimming | streamlined |
| when resistance slows something down | drag |
| bodies adapted to flight | aerodynamic |
| when forces are balanced preventing any further acceleration | terminal velocity |
| inventor of the steam engine in the 18th century | Thomas Newcomen |
| inventor of "the rocket"(v fast train) in the 19th century | George Stephenson |
