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Astronomy II
Test Description: Earth science
Instructions: Answer all questions to get your test result.
1) A collection of million and billions of stars around a common center is called a
A
planet
B
galaxy
C
solar system
D
a light year
2) What celestial body has the greatest influence on our tides
A
nearest planet
B
moon
C
asteroid
D
sun
3) How long does it take for the Earth to revolve around the sun?
A
1 year
B
1 month
C
1 week
D
1 day
4) What is the relationship between mass and gravity
A
objects with more mass will have less gravity
B
mass and gravity are not related
C
objects with more mass will have greater gravity
D
objects with less gravity will have more mass
5) What causes the changing of the seasons?
A
the distance of the Earth from the sun
B
the tilt of the Earth's axis
C
the changing amount of light the sun emits
D
it is dependent upon where you are on the Earth
6) A solar eclipse is most likely to occur when the
A
moon is located between the sun and the earth
B
earth is located between the sun and the moon
C
earth and moon are at right angles to each other
D
sun is located between the earth and moon
7) The color of the coolest star is
A
red
B
orange
C
yellow
D
blue
8) In a star life cycle, the name given to a ball of gas that has not begun to produce light is a
A
white dwarf
B
black hole
C
nebula
D
supernova
9) The earth rotates once every
A
month
B
day
C
year
D
week
10) The universe of shrinking
A
false
B
true
11) The universe includes all matter and energy
A
true
B
false
12) Our galaxy is part of a group of galaxies called the
A
local group
B
milky way
C
virgo duster
D
neighborhood
13) What's the best explanation that science has about how the universe started?
A
The Steady State theory
B
The Big Bang theory
C
The String theory
D
The Chaos theory
14) What is the next closet star to our Sun?
A
Arcturus
B
Vega
C
Antares
D
Proxima Centari
15) Main sequence is the balance between FUSION and GRAVITY
A
TRUE
B
FALSE
16) The brightness of a star can be measured with absolute magnitude or_______________?
A
temperature
B
parallax
C
apparent magnitude
D
luminosity
17) The Sun makes up about ____% of the Solar System's mass?
A
90%
B
50%
C
75%
D
98%
18) ________is the comment center of mass around which 2 or more bodies revolve
A
eccentricity
B
precession
C
regolith
D
barycenter
19) _______is the measure of how an object's orbit differs from a perfect circle
A
protostar
B
regolith
C
precession
D
eccentricity
20) __________is loose, remaining material on the surface of a planet or moon
A
regolith
B
barycenter
C
eccentricity
D
protostar
*select an answer for all questions
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