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Force and Motion
Niewoehner Science Review
Term | Definition |
---|---|
Acceleration | The rate at which the speed or direction of an object changes |
Gravity | The force of attraction between any two objects |
Acceleration | The measure of how quickly velocity changes |
Contact Force | A force that requires two pieces of matter to touch |
Inertia | The tendency of an object to resist a change in motion |
Non-Contact Force | A force that acts at a distance |
Friction | A force that opposes motion between objects that are touching |
Air Resistance | Type of friction used to slow a parachute |
Newton's First Law | States that an object will not move or change its direction unless it is acted upon by a force |
Magnetism | A type of non-contact force between metals |
Force | A push or pull that acts on an object |
Large Masses | Harder to accelerate |
Newton's Second Law | States that the acceleration of an object depends on the mass of the object and the net force applied |
Smaller force | Produces less acceleration |
Net Force | The combination of all the forces acting on the object |
Newton's Third Law | For every action force there is an equal and opposite reaction force |