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Unit 3 Test
Test Description: Universe, Stars, Galaxies
Instructions: Answer all questions to get your test result.
1) Our sun will not become a black hole because it is
A
too large
B
too cool
C
too close to us
D
too small
2) Our Sun will end as a
A
black dwarf
B
nova
C
black hole
D
white dwarf
3) Which factor does not affect a stars luminosity?
A
Stars temperature
B
Stars Shape
C
Stars Size
D
Stars distance
4) Which object forms by the contraction of a large sphere of gases causing the nuclear fusion of lighter elements into heavier elements
A
planet
B
moon
C
star
D
comet
5) By using a spectroscope as astronomer can
A
identify elements in the atmosphere of a star
B
measure the diameter of a star
C
measure the size of a star
D
measure the altitude of a star
6) a light year measures
A
distance
B
time
C
velocity
D
miles
7) The first step in the life cycle of a star is
A
blue giant
B
nebula
C
main sequence
D
protostar
8) Andromeda serves as a model for our galaxy because
A
same shape
B
visible without a telescope
C
same size
D
it's our nearest neighbor
9) The Sun and Siruis have the same absolute magnitude, but the Sun appears much brighter because it is
A
much bigger
B
variable
C
yellow
D
closer
10) In the center of every Galaxy, there is theoritcally a/an
A
quasar
B
pulsar
C
black hole
D
neutron star
*select an answer for all questions
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