| A | B |
|---|
| Static friction | friction of no moment |
| Rolling friction | friction using wheels, tires or roller skates |
| Sliding friction | friction is when two surfaces are pushed together |
| Newton's 1st Law | objects remain at rest until acted upon |
| Newton's 2nd Law | object will accelerate in the direction of the force applied |
| Newton's 3rd Law | states equal and opposite reactions |
| Force | a push or pull on an object |
| Inertia | tendency of an object to remain at rest or in constant motion unless a force acts on it |
| Momentum | a measure of how difficult it is to stop a moving object |
| Friction | rubbing force that acts against the motion between two surfaces |
| gravitational force | the force of attraction between any and every object in the universe |
| speed | a measure of how fast an object is moving |
| speed formula | distance divided by time |
| velocity | the speed of an object in a particular direction |
| acceleration | the rate in which speed changes |
