| A | B |
|---|
| Newton's First Law | Objects continue the motion they already have unless they are acted on by a net force |
| Net force | The sum of all forces acting on an object at any given time |
| Net force is zero | Objects stay at rest |
| Unbalanced forces | Result in a net force on an object that can cause changes in motion (net force is not exactly zero) |
| Inertia | The property of an object that resists changes in its motion |
| Acceleration | Force divided by mass |
| Newton | Force it takes to change the speed of a 1 kg mass by 1m/s in 1 second |
| Net force causes | acceleration |
| Force unit of newtons based | Kilograms, Meters, and Seconds |
| Newton's Third Law | Every action force creates a reaction force that is equal in strength and opposite in direction. |
| Newton's Second Law | The amount of acceleration depends on both the force and the mass. Motion cannot change without a net force. |
