| A | B |
|---|
| Weight | a force created by gravity |
| Viscous friction | resistance in water or fluids |
| sliding friction | resistance when two surfaces rub together |
| rolling friction | resistance when objects roll over one another |
| pounds | English system unit of force |
| Newton's 1st Law | objects at rest will stay at rest... |
| air friction | opposing force created by objects in air |
| Equilibrium | balanced forces |
| force | a push or pull- changes motion |
| friction | force resulting from motion between objects |
| gravity | attractive force that is between any two objects with mass |
| Inertia | resistance of any object to change its motion |
| Net force | total amount of force on an object |
| 2nd Law | F = M x A |
| Newton | unit for force |
| Third Law | for every action there is an equal and opposite reaction |
| Momentum | mass multiplied by its speed or velocity |
