| A | B |
|---|
| Newton's 2nd Law of Motion | States 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 | the force that opposes the sliding motion between two touching objects |
| Static friction | frictional force that prevents two surfaces from sliding past each other |
| Sliding friction | frictional 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 |
| 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 | 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 |
| Weight | gravitational force exerted on an object |
| Momentum | property of a moving object that equals its mass times its velocity |
