Orbital motion (Finals)
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At what point in orbit will a planet speed up?
Perihelion
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What two factors affect the gravitational pull of an object?
Mass and distance
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An astronomical unit is the distance from ___ to __
Earth and Sun
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Which planet has the shortest orbital period?
Mercury
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Every object attracts every other object this is?
Newtons Law of Universal Gravitation
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What is the 1st Newton Law
An object at rest remains at rest
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What is the 2nd Newton Law
An object in motion remains in motion at constant speed in a straight line unless acted on by an unbalanced force
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What is the 3rd Newton Law
The acceleration of an object depends on the mass of the object and the amount of force applied.
Note 
Flashcards (36)