balanced force - forces acting on an object that cause no change in the motion of the object and result in a net force equal to zero newtons, unbalanced force - force acting on an object that causes a change in the motion of the object and results in a net force that does not equal zero newtons, net force - sum of all forces acting on an object; includes both magnitude and direction, newton - unit used to measure force (N), horizontal - parallel to the horizon, vertical - perpendicular to the horizon, magnitude - size, quantity, or intensity of an object, action, or event, Newton's Third Law of Motion - when two objects interact, they exert a force on each other that are equal in size and opposite in direciton, simultaneous force pair - pair of forces that exists between two objects interacting with each other; the forces are equal in size and opposite in direction,

Balanced & Unbalanced Forces

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