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