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