| A | B |
|---|
| action | force by body on another |
| centripital force | force needed to keep object in circular motion |
| Effort | force applied on a body due to a definite cause |
| force | what ever starts stops or changes motion |
| Friction | two objects touching resist movement always opposite direction of movement |
| Inertia | remain still if still, remain in motion in the same direction unless acted upon by an outside force |
| Law of inertia | tendency of an object to remain at rest or to stay in motion unless acted upon by an outside force |
| Measurement | Dimension, quantity,, or capacity found by measuring |
| Momentum | The moving of a body in motion |
| Motion | When a body changes its location |
| Newton's first Law of Motion | An object will continue moving at the same speed and in the same direction until a force acts upon it to change the speed and direction |
| Newton's second law of motion | An object slows down or speeds up in proportion the size of the force acting upon it. |
| Newton's third law of motion | For every action there is an opposite reaction |
