Newton's Third Law & Action-Reaction Pairs definitions Flashcards
Newton's Third Law & Action-Reaction Pairs definitions
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Newton's Third Law States that for every action force, there is an equal and opposite reaction force. Action-Reaction Pair A set of forces where one force is the action and the other is the equal and opposite reaction. Magnitude The size or strength of a force, which remains equal in action-reaction pairs. Direction The line along which a force acts, opposite in action-reaction pairs. Normal Force A force exerted by a surface in response to an object resting on it, part of an action-reaction pair. Weight Force The gravitational force exerted by the Earth on an object, part of an action-reaction pair. Free Body Diagram A graphical representation used to visualize the forces acting on an object. Acceleration The rate of change of velocity of an object, calculated using F=ma. Equilibrium A state where all forces are balanced, resulting in no net force and no acceleration. Mass A measure of the amount of matter in an object, affecting its acceleration under force. Frozen Lake A surface with negligible friction, used in physics problems to simplify calculations. Force An interaction that changes the motion of an object, measured in newtons. Surface Push A force applied perpendicular to a surface, often resulting in a normal force. Inertia The tendency of an object to resist changes in its state of motion. F=ma The equation representing Newton's second law, relating force, mass, and acceleration.