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Laws of Motion
| Term | Definition |
|---|---|
| First Law of Motion | Objects at rest remain at rest and objects in motion continue at a constant velocity unless acted upon by an unbalanced force. |
| Inertia | The tendency of an object to not change its motion. |
| Second Law of Motion | acceleration = force / mass |
| Gravity | The force of attraction between all objects that depends on the mass of the objects and the distance between them. |
| Weight | The force due to gravity. |
| Centripetal Force | The force that causes objects to move in a curved or circular path. |
| Centripetal Acceleration | The acceleration of an object because it is moving in a curved or circular path. |
| Third Law of Motion | For every action force there is an equal and opposite reaction force. |
| Momentum | The property of a moving object that is the product of its mass and velocity. |
| Law of Conservation of Momentum | States that the total momentum of objects remains the same. |
| Newton | SI unit of force |
| Kilogram | SI unit of mass |
| m/s/s | SI unit of acceleration |
| 9.8m/s/s | The acceleration due to gravity of objects near Earth's surface (neglecting air resistance). |