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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
nearest planet
B
moon
C
asteroid
D
sun
3) How long does it take for the Earth to revolve around the sun?
A
1 day
B
1 week
C
1 year
D
1 month
4) What is the relationship between mass and gravity
A
objects with more mass will have less gravity
B
objects with less gravity will have more mass
C
mass and gravity are not related
D
objects with more mass will have greater 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
sun is located between the earth and moon
B
moon is located between the sun and the earth
C
earth is located between the sun and the moon
D
earth and moon are at right angles to each other
7) The color of the coolest star is
A
blue
B
yellow
C
red
D
orange
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
supernova
C
nebula
D
white dwarf
9) The earth rotates once every
A
year
B
week
C
month
D
day
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
neighborhood
B
milky way
C
local group
D
virgo duster
13) What's the best explanation that science has about how the universe started?
A
The Big Bang theory
B
The Steady State theory
C
The Chaos theory
D
The String theory
14) What is the next closet star to our Sun?
A
Arcturus
B
Proxima Centari
C
Vega
D
Antares
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
90%
C
98%
D
50%
18) ________is the comment center of mass around which 2 or more bodies revolve
A
eccentricity
B
barycenter
C
regolith
D
precession
19) _______is the measure of how an object's orbit differs from a perfect circle
A
regolith
B
eccentricity
C
precession
D
protostar
20) __________is loose, remaining material on the surface of a planet or moon
A
protostar
B
barycenter
C
eccentricity
D
regolith
*select an answer for all questions
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