astronomy unit 2-- orbital motion
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9 Terms
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Newton’s First Law
an object moves/rests at a constant velocity unless acted on by an outside force
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Newton’s Second Law
force = mass \* acceleration
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Newton’s Third Law
every force has a paired force that is equal in magnitude and opposite in direction
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momentum
a descriptor of an object’s motion, found with mass x velocity
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angular momentum
a descriptor of an object’s rotational motion, found with mass x velocity x distance from given rotational point
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escape speed
the speed required for an object to leave an orbit
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penumbra
the shadow cast by a body caused by the sun’s light
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umbra
the darkest portion of a body’s shadow
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mass
the product of volume and density
Note 
Flashcards (36)