ch2 forces and motion Flashcards

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1
Q

terminal velocity

A

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.

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2
Q

free fall

A

the motion of a body when only the force of gravity is acting on the body.

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3
Q

projectile motion

A

the curved path that an object follows when thrown, launched, or otherwise projected near the surface of earth.

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4
Q

inertia

A

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.

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5
Q

momentum

A

a quantity defined as the product of the mass and velocity of an object.

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