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chap 5-6 vocab

Chapter Five Six vocab

QuestionAnswer
an object s change in position relative to a reference point motion
the distance traveled divided by the time interval during which the motion occurred speed
the speed of an object in a particular direction velocity
the rate at which velocity changes over time; an object accelerates if its speed, direction, or both change acceleration
a push or a pull exerted on an object in order to change the motion of the object; force has size and direction force
the SI unit for force (symbol, N) newton
the combination of all of the forces acting on an object net force
a force that opposes motion between two surfaces that are in contact friction
a force of attraction between objects that is due to their masses gravity
a measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe weight
a measure of the amount of matter in an object mass
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 terminal velocity
the motion of a body when only the force of gravity is acting on the body free fall
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 dimensions under the influence of gravity projectile motion
the tendency of an object to resist a change in motion unless an outside force acts on the object inertia
a quantity defined as the product of the mass and velocity of an object momentum
Created by: Tsarmina
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