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12:3 12:4 Review
Test Description: Review for topic 12 part 2
Instructions: Answer all questions to get your test result.
1) A large cloud of gas and dust in space
A
black dwarf
B
supernova
C
protostar
D
nebula
2) a contracting cloud of gas and dust with enough mass to form a star
A
nebula
B
black dwarf
C
protostar
D
super giant
3) the blue-white hot core of a star that is left behind after its outer layers have expanded and drifted out into space
A
white-dwarf
B
nebula
C
supergiant
D
protostar
4) the brilliant explosion of a dying supergiant star
A
big bang
B
supernova
C
big crunch
D
nebula
5) the brightness of a star as seen from earth
A
pulsar
B
apparent brightness
C
absolute brightness
D
magnitude
6) the brightness a star would be if it were at a standard distance from Earth
A
apparent brightness
B
absolute brightness
C
pulsar
D
big bang
7) a huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity
A
galaxy
B
nebula
C
universe
D
solar system
8) all of space and everything in it
A
univese
B
world
C
galaxy
D
solar system
9) the distance that light travels in one year
A
light-year
B
mile
C
universal kilometer
D
kilometer
10) the initial explosion that resulted in the formation and expansion of the universe
A
supernova
B
big crunch
C
big bang
D
nebula
11) a star is formed when gravity causes the gas and dust to become so dense and hot that __ occurs
A
gravity
B
nebulas
C
nuclear fusion
D
expansion
12) how long do small-mass stars last?
A
100 billion years
B
200 million years
C
200 billion years
D
100 million years
13) how long do medium mass stars last?
A
10 billion years
B
10 million years
C
100 million years
D
100 billion years
14) how long do large mass stars last?
A
100 million years
B
10 billion years
C
100 billion years
D
10 million years
15) what determines the length of a star's life
A
size
B
color
C
mass
D
distance
16) what determines the brightness of a star?
A
color and temperature
B
distance and color
C
temperature and size
D
mass and distance
17) what color are the hottest stars?
A
green
B
orange
C
blue
D
red
18) what color are the coolest stars?
A
green
B
red
C
blue
D
orange
19) what characteristic is not used to classify a star?
A
color
B
size
C
distance
D
brightness
20) a spinning neutron star that gives off radio waves
A
nebula
B
pulsar
C
supernova
D
protostar
*select an answer for all questions
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