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Ch. 17 Stars Test Review
Test Description: Stars review
Instructions: Answer all questions to get your test result.
1) What color stars are the hottest?
A
red-orange
B
blue
C
white-blue
D
red
2) The most massive stars collapse to form a _____ or neutron star when they die.
A
black hole
B
white dwarf
C
neutron star
D
supernova
3) The Milky Way is an example of a ____
A
elliptical galaxy
B
quasar
C
irregular galaxy
D
spiral galaxy
4) A ____ is the remains of a star that has no fuel but continues to glow.
A
nebula
B
white dwarf
C
supernova
D
black dwarf
5) A ____ telescope uses mirrors to collect and focus light.
A
reflecting
B
relaxing
C
optical
D
refracting
6) Astronomers use ___ to measure the distance to stars.
A
miles
B
kilometers
C
astronomical units
D
light-years
7) Most stars are in this category on the H-R Diagram.
A
giant
B
main sequence
C
white dwarf
D
supergiant
8) A star's lifetime will depend on its
A
color
B
brightness
C
mass
D
temperature
9) ______ says that the farther a galaxy is away, the faster it is moving.
A
The Big Crunch Theory
B
Hubble's Law
C
The Big Bang Theory
D
Hubble's THeory
10) ____ are the small asteroid-like building blocks of the planets.
A
Comets
B
Planet-blocks
C
Planetesimals
D
Planetanimals
*select an answer for all questions
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