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Astronomy Review 2
Test Description: Unit Review
Instructions: Answer all questions to get your test result.
1) How long does it take for the moon to orbit the Earth once?
A
approx. 1 year
B
approx. 30 hours
C
approx. 1 day
D
approx. 1 month
2) Our sun and the nine planets collectively is called
A
a galaxy.
B
the solar system.
C
the planets.
D
the milky way.
3) What two factors affect the strength of gravity?
A
weight and size
B
weight and spin
C
mass and spin
D
mass and distance
4) The moon phase where the light is on the right and slightly illuminated is called a
A
Waning Crescent
B
Waxing Cresent
C
Waning Gibbous
D
Waxing Gibbous
5) Stars are born when this process takes place
A
nuclear fusion
B
inertia
C
nuclear explosion
D
gravity
6) The moon phase where the moon appears fully illuminated is called a
A
waxing crescent
B
new moon
C
waning crescent
D
full moon
7) Huge clouds of gas and dust in space is called
A
astronomical units
B
galaxies
C
solar systems
D
nebulas
8) Appoximately how old is our sun?
A
4 million years old
B
4.6 billion years old
C
400 million years old
D
400 years old
9) When a star explodes it is called a
A
red giant
B
supernova
C
dwarf star
D
black hole
10) The moon phase where the light is on the left and 3/4 illuminated is called a
A
waning gibbous
B
full moon
C
new moon
D
waxing gibbous
*select an answer for all questions
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