| Term | Definition |
|---|---|
| Gravity | Force that pulls an object toward the center of a much larger object. On Earth, it is measured as 9.8 m/s/s |
| Net force | Sum total of all forces (both positive and negative) acting on an object. |
| Inertia | Property of matter which resists a change in motion. |
| Friction | Force that opposes motion. |
| Air Resistance | Upward force that acts to slow down a falling object. |
| Newton's 1st Law | Law of Inertia. States that an objects motion will remain constant unless acted on by an unbalanced force. |
| Newton's 2nd Law | Law of acceleration. States that acceleration depends on an object's mass and the force applied to it. |
| Newton's 3rd Law | Law of action & reaction. States that for every action force there is an equal and opposite reaction force. |
| Law of Conservation of Momentum | States that the total momentum prior to a collision is equal to the total momentum after a collision. Momentum cannot be created or destroyed. |
| Position vs. Time Graph | Graph showing the location of an object relative to the origin. The slope of this graph = the velocity of the object. |
| Velocity vs. Time Graph | Graph showing the speed and direction of an object's motion. The slope of this graph = the acceleration of the object. |
