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ASTRO 101 FINAL UW Exam Questions
And Answers |Latest 2025 | Guaranteed Pass.
An astronaut who fell into a black hole would be stretched because - Answer✔the force of
gravity increases quickly over short distances.
If the Sun collapsed to a black hole today, how would it affect the Earth? - Answer✔It would be
dark.
The formation of the Milky Way's ______ depended on the presence of gas. - Answer✔disk
Halo objects orbit the center of the Milky Way, - Answer✔in random orientations and
directions.
The Milky Way's ______ composed of stars (and gas and dust) in randomly oriented orbits. -
Answer✔halo and bulge are
Most of the mass in the Milky Way is, - Answer✔dark matter.
A DVD's rotation curve (velocity vs. radius) graph - Answer✔increases as radius increases.
A disk galaxy's rotation curve - Answer✔is relatively constant as radius increases.
The Milky Way's rotation curve provides evidence of dark matter because: - Answer✔-
additional, invisible matter is required to keep the rotation speed relatively constant
-the rotation curve extends far beyond the Milky Way's disk.
Which type of galaxies appear to have many young stars? - Answer✔Disk Galaxies
Do the galaxies you identified in the previous question also contain old stars? - Answer✔Yes
Which type of galaxies are more likely to show evidence of dust? - Answer✔Disk Galaxies
If a galaxy is experiencing active star formation, it must contain - Answer✔cool, dense gas.
Which type of galaxies have cool, dense gas available for star formation? - Answer✔Disk
Galaxies
Which type of galaxy shows evidence of significant numbers of O-stars and M-stars? -
Answer✔Disk Galaxies
1
ASTRO 101 FINAL UW Exam Questions
And Answers |Latest 2025 | Guaranteed Pass.
An astronaut who fell into a black hole would be stretched because - Answer✔the force of
gravity increases quickly over short distances.
If the Sun collapsed to a black hole today, how would it affect the Earth? - Answer✔It would be
dark.
The formation of the Milky Way's ______ depended on the presence of gas. - Answer✔disk
Halo objects orbit the center of the Milky Way, - Answer✔in random orientations and
directions.
The Milky Way's ______ composed of stars (and gas and dust) in randomly oriented orbits. -
Answer✔halo and bulge are
Most of the mass in the Milky Way is, - Answer✔dark matter.
A DVD's rotation curve (velocity vs. radius) graph - Answer✔increases as radius increases.
A disk galaxy's rotation curve - Answer✔is relatively constant as radius increases.
The Milky Way's rotation curve provides evidence of dark matter because: - Answer✔-
additional, invisible matter is required to keep the rotation speed relatively constant
-the rotation curve extends far beyond the Milky Way's disk.
Which type of galaxies appear to have many young stars? - Answer✔Disk Galaxies
Do the galaxies you identified in the previous question also contain old stars? - Answer✔Yes
Which type of galaxies are more likely to show evidence of dust? - Answer✔Disk Galaxies
If a galaxy is experiencing active star formation, it must contain - Answer✔cool, dense gas.
Which type of galaxies have cool, dense gas available for star formation? - Answer✔Disk
Galaxies
Which type of galaxy shows evidence of significant numbers of O-stars and M-stars? -
Answer✔Disk Galaxies
1
