| A | B |
|---|
| force | a push or pull |
| speed | distance an object travels over a period of time |
| velocity | rate of motion in a given direction |
| acceleration | rate of change in velocity |
| friction | force that acts in the opposite direction of motion causing an objet to slow down and finally stop |
| mass | the amount of matter in an object |
| inertia | property of matter that tends to resist any change in motion |
| conductor | materia which perits electricity to flow freely |
| insulator | material which does not permit electricity to flow freely |
| resistance | opposition to the movement of electric charges flowing through a material. |
