| A | B |
|---|
| Four basic forces | Gravitational, electrical, strong nuclear, weak nuclear |
| Gravitational force | weakest force |
| Forces acting over large distances | Gravitational force |
| Strong nuclear force | strongest force |
| Newtons 1st law | Body in motion tends to stay in motion. A body at rest tends to stay at rest. |
| Newtons 2nd law | F = ma |
| Newtons 3rd law | Action/Reaction |
| Weight | product of mass and gravity - varies throughout the universe |
| mass | Does not vary throughout the universe |
| static friction | friction to get something started moving larger of two frictions |
| sliding friction | friction while moving |
| coefficient of friction | measure of how rough two surface contacts are. Varies between zero and one. |
| Net force | VECTOR sum of all the forces. |
| electromagnetic force | Force of bending or breaking |
| Action/Reaction force | One object exerts a force on another object, the second exerts an equal and opposite force on the first. |
