Galaxy
Solar system
Astronomers
Motion
Extra
100
What does red shift mean
What is an object moving farther away from the viewer
100
Who's theory was accepted as truth for 1500 years in Europe
Who is Ptolemy's theory of a sun centered universe (geocentric)
100
How fast does an object have to go to stay in earths orbit
What is 8km/s
100
The law of inertia is based on this law of Newton
What is Newton's first law
200
How many constellations are there
What is 88
200
How much oxygen is in the earths atmosphere
What is 21%
200
Who showed that all objects in the universe contracted each other by gravitational force
Who is Isaac Newton
200
How fast do objects accelerate towards earth
What is 9.8mps^2
200
An object falling at a constant velocity is called what
What is terminal velocity
300
What are the three types of galaxies
What is spiral, elliptical,and irregular
300
What caused earth to have its spherical shape
What is matter of the earth increased gravity also increased
300
Who proved I there were other galaxies in the universe
Who is Edwin Hubble
300
What is acceleration
What is the rate at which the velocity changes over time
300
Acceleration depends on what
What is force and mass
400
What is a white dwarf
What is a small hot and dim star that is left over center of an old star
400
What is the corona
What is sun's outer atmosphere
400
Who discovered Europa
Who is Galileo
400
What is the acceleration formula
What is (vf-vi)/t
400
Which galaxy is our solar system in
What is the Milky Way
500
Which telescope uses a set of lenses to gather and focus light from distant objects
What is refracting
500
What was Copernicus theory
What is a sun center universe (heliocentric)
500
Johannes Kepler was assistant to who
What is Tycho Brahe
500
What is a void of matter
What is a vacuum
500
What color is the hottest star
What is blue
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