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Ch. 11 Holt

Forces

TermDefinition
Inertia the tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction until an outside force acts on the object.
Free Fall the motion of a body when only the force of gravity is acting on the body.
Terminal Velocity the constant velocity of a falling object when the force of air resistance is equal in magnitude and opposite in direction to the force of gravity.
Projectile Motion the curved path that an object follows when thrown, launched, or otherwise projected near the surface of Earth; the motion of objects that are moving in two-dimentions under the influence of gravity.
Momentum a quanitity defined as the product of the mass and velocity of an object.
Created by: haasem