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chapter3vocab
vocabulary for physics like newtons 2nd law of motion
Term | Definition |
---|---|
Newton's second law of motion | States that the acceleration of an object is in the same direction as the net force on the object. |
Friction | the forces that oppose the sliding motion of 2 surfaces that are touching each other. |
Static friction | the frictional force that prevents two surfaces from sliding past each other. |
Sliding friction | the force that opposes the motion of 2 surfaces sliding past each other. |
Air resistance | opposes the motion of objects that moves through the air. |
Gravity | an attractive force between any 2 objects that depends on the masses of the object and the distance between them. |
Weight | Gravitational force exerted on an object. |
Centripetal acceleration | Acceleration of an object toward the center of a curved or a circular path. |
Centripetal force | a net force that is directed toward the center of a curved or circular path. |
Newton's 3rd law of motion | when an object exerts a force on a second object, the second one exerts a force on the first that is equal in strength and opposite in direction. |
Momentum | an object is the product of its mass and velocity. |