front 1 Newton's second law of motion | back 1 Describes the acceleration of an object in the direction of the net force applied to it |
front 2 friction | back 2 The force that opposes motion between two surfaces that are touching each other. |
front 3 Gravity | back 3 Force exerted by every object in the universe on every other object. The amount of force depends on the masses of the objects and the distance between them. |
front 4 centripetal acceleration | back 4 Acceleration toward the center of a circle by an object moving along a circular path |
front 5 centripetal force | back 5 The force that causes an object moving along a circular path to move toward the center of the path. |
front 6 weight | back 6 The measure of the force of gravity of an object. |
front 7 Newton's third law of motion | back 7 Describes action-reaction pairs; for every action force, there is an equal and opposite reaction force. |
front 8 momentum | back 8 A property of any moving object; the product of an object's mass and velocity. |