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