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Solar System& Uni

Earth sic vocab

TermDefinition
Asteroid A small rock orbiting the sun
Axis An invisible line that an a object rotates around
The big bang theory How astronomers explain the start of the universe and how one single point expanded
Comet A cosmic snowball of frozen gasses and dust that orbits the sun
Day A time of of period when the earth goes around the axis for about 24 hours
Doppler affect change in frequency of a wave for an observer moving like it's source
Eccentricity Measure of how oval a orbit is shaped
fission energy being put out and splits an atom into two
Focus/Foci The two points of an ellipse that determines the shapes curve
Galaxy A huge collection of gas,dust,stars, in their solar system
Geocentric model An theory of how the structure of the solar system, in which the earth is assumed to be at the center
Gravity universal pull between all matter
Created by: Nijah05
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