Review Questions
By Formative Library
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Last updated over 2 years ago
11 Questions
1
1.
Describe some differences between quasars and normal galaxies.
1
2.
Describe the arguments supporting the idea that quasars are at the distances indicated by their redshifts.
1
3.
In what ways are active galaxies like quasars but different from normal galaxies?
1
4.
Why could the concentration of matter at the center of an active galaxy like M87 not be made of stars?
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5.
Describe the process by which the action of a black hole can explain the energy radiated by quasars.
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6.
Describe the observations that convinced astronomers that M87 is an active galaxy.
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7.
Why do astronomers believe that quasars represent an early stage in the evolution of galaxies?
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8.
Why were quasars and active galaxies not initially recognized as being “special” in some way?
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9.
What do we now understand to be the primary difference between normal galaxies and active galaxies?
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10.
What is the typical structure we observe in a quasar at radio frequencies?
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11.
What evidence do we have that the luminous central region of a quasar is small and compact?
Please take the time to check out the source for this material from Openstax if you plan to use this in your lesson plan!: https://openstax.org/books/astronomy/pages/27-review-questions