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Chapte3
| Question | Answer |
|---|---|
| Newton's 2nd Law of Motion | The acceleration of an object is in the same direction as the net force on the object, and that the acceleration equals net force divded by mass. |
| Friction | forces that opposes the sliding motion between two touching surfaces. |
| Sliding Friction | frictional force that opposes the motion of two surfaces sliding past each other. |
| Static Friction | frictional force that prevents two surfaces from 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. |
| Centripetal Force | a net force that is directed toward the center of a curved or circular path. |
| Newton's 3rd Law of Motion | 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 directoin. |
| Momentum | property of a moving object that equals its mass times its velocity. |