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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
a light year
B
solar system
C
planet
D
galaxy
2) What celestial body has the greatest influence on our tides
A
asteroid
B
moon
C
nearest planet
D
sun
3) How long does it take for the Earth to revolve around the sun?
A
1 week
B
1 day
C
1 month
D
1 year
4) What is the relationship between mass and gravity
A
objects with less gravity will have more mass
B
objects with more mass will have greater gravity
C
mass and gravity are not related
D
objects with more mass will have less gravity
5) What causes the changing of the seasons?
A
the distance of the Earth from the sun
B
it is dependent upon where you are on the Earth
C
the tilt of the Earth's axis
D
the changing amount of light the sun emits
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
yellow
B
orange
C
red
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
black hole
B
nebula
C
supernova
D
white dwarf
9) The earth rotates once every
A
year
B
day
C
month
D
week
10) The universe of shrinking
A
false
B
true
11) The universe includes all matter and energy
A
false
B
true
12) Our galaxy is part of a group of galaxies called the
A
virgo duster
B
milky way
C
neighborhood
D
local group
13) What's the best explanation that science has about how the universe started?
A
The Steady State theory
B
The String theory
C
The Big Bang theory
D
The Chaos theory
14) What is the next closet star to our Sun?
A
Vega
B
Antares
C
Arcturus
D
Proxima Centari
15) Main sequence is the balance between FUSION and GRAVITY
A
FALSE
B
TRUE
16) The brightness of a star can be measured with absolute magnitude or_______________?
A
parallax
B
luminosity
C
temperature
D
apparent magnitude
17) The Sun makes up about ____% of the Solar System's mass?
A
75%
B
98%
C
50%
D
90%
18) ________is the comment center of mass around which 2 or more bodies revolve
A
barycenter
B
precession
C
regolith
D
eccentricity
19) _______is the measure of how an object's orbit differs from a perfect circle
A
regolith
B
precession
C
eccentricity
D
protostar
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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