click below
click below
Normal Size Small Size show me how
PS chater 3
derinition
Term | Definition |
---|---|
Newton's second law of motion | that the acceleration of an object is in the same direction as the net force on the object, and that the acceleration equals the net force divided by the mass. |
Friction | Force that opposes the sliding motion between two touching surfaces |
Static friction | frictional force that prevents two surfaces from sliding past each other. |
Sliding friction | friction force that opposes the motion of two surfaces sliding past each other. |
Air resistance | Force that opposes the motion of objects that move through the air. |
Gravity | Attractive force between two objects that depends on the masses of the objects 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 circular path. |
Newton's third law of motion | states that when one object exerts a force on a second object,the second object exerts a force on the first object that is equal in strength and in the opposite direction. |
Momentum | property of a moving object that equals its mass times its velocity. |