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Damien's Quizlet Live Thing. Unit 4 Earth And Space, Unit 4 Vocab
Terms in this set (22)
What is Planetary Motion?
A motion that keeps planets from going into the sun.
What is the Composition of the Kuiper Belt?
Rock and Ice
What is the Composition of the Outer Solar System?
Gas, Ice and metal.
What is the Composition of the asteroid belt?
Rock and metal
What is the mechanics of orbit?
A Circular motion caused by gravitation that keeps them from crashing into the sun.
The center mass became a star, emitting both light and streams of charged particles is known as what?
How far is earth away from the sun?
92.96 million mi.
How many pieces of space junk does NASA track?
500 thousands pieces in total.
What does AU stand for?
What is Aurora Borealis?
The Interaction between solar wind and earth's magnetic field and atmosphere.
Evaporating readily at normal temperatures and pressures.
A large cloud of gas and dust in interstellar space.
A stream of high speed, ionized particles ejected primarily from the suns corona.
A disk of gas and dust particles that orbit a newly formed star, from which planets may form.
A path of a body as it moves around another body due to their mutual gravitational attraction.
An oval shape defined by points for which the sum of the distances to two fixed points is a constant.
One of the two central defining points of an ellipse.
A center line to which parts of a structure or body may be referred.
The degree of elongation of an elliptical orbit.
A force of attraction between objects that is due to their masses and that decreases as the distance between the objects increases.
An action exerted on a body that tends to change the bodies state of rest or motion.
The speed of something in a given direction.
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