| A | B |
|---|
| force | push or pull |
| net forces | all forces acting on object |
| Net force = 0 | no motion occuring |
| balanced forces | forces are equal and cancel |
| example of balanced force | two equal people pushing on a door |
| unbalanced forces | one force is stronger and causes motion |
| example of unbalanced force | a child and adult pushing on a door |
| Newton's 1st Law | objects at rest stay at rest |
| friction | force occurs when two objects contact |
| sufaces friction can occur with | surfaces, air, water |
| Newton's 2nd Law | object moves in direction of force applied |
| example of Newton's 3rd Law | rocket launch |
| Newton's 3rd Law | every action has an equal and opposite reaction |
| F = | MA |
| F stands for | force |
| M stands for | mass |
| A stands for | acceleration |
