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Chapter 21 Quiz Review
Test Description: This is review for your upcoming chapter 21 review. Have fun.
Instructions: Answer all questions to get your test result.
1) What chart compares a star's surface temperature to its brightness?
A
a Hertzsprung-Russell diagram
B
an anenometer
C
a Fujita scale
D
a spectrograph
2) A light year is a measure of what?
A
absolute magnitude
B
temperature
C
distance
D
time
3) _____ is the apparent change in position of an object when viewed from different places.
A
parallax
B
absolute magnitude
C
composition
D
nebula
4) This objects has such great gravity that no electromagnetic energy can escape.
A
black hole
B
white dwarf
C
supernova
D
nebula
5) The process by which a star greates energy is ____
A
nuclear fission
B
nuclear fusion
C
transpiration
D
combustion
6) Large mass stars have shorter lives because
A
they burn their fuel at a higher rate
B
they always have higher surface temperatures
C
they are usually older and less energy efficient
D
small stars use a different type of energy production
7) What kind of star is the sun?
A
a white dwarf
B
a red giant
C
a main sequence
D
a supergiant
8) Differences between apparent brightness and absolute brightness are due to
A
the distance from Earth
B
the type of galaxy
C
its spectrogram
D
a star's age
9) Stars begin as a cloud of dust and gas called a
A
black hole
B
nebula
C
white dwarf
D
supernova
10) The Milky Way galaxy has what shape?
A
random
B
elliptical
C
spiral
D
irregular
11) What is the fuel in our sun?
A
carbon
B
helium
C
oxygen
D
hydrogen
12) What characteristic are scientists trying to determine when they use a spectrograph?
A
star's position
B
star's temperature
C
star's size
D
star's composition
13) When an star is moving away from us, what happens to the apparent wavelength of the light it emits?
A
it decreases
B
it stays the same
C
in increases
D
we don't know
*select an answer for all questions
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