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- 1. Multiple Choice
Galaxies are colossal collections of stars, gas & dust held together by _____.
space/time
gravity
black holes
dark matter
- 2. Multiple Choice
Younger stars that orbit the galactic bulge are located in the
Halo regions.
galactic disk.
galactic bulge.
density waves.
- 3. Multiple Choice
The area of the galaxy that has the most dense stars surrounding a supermassive black hole.
Halo region
galactic bulge
galactic disk
spiral density arms
- 4. Multiple Choice
The area where faint, old stars exists that surrounds the disk & bulge.
Halo region
galactic bulge
galactic disk
spiral density regions
- 5. Multiple Choice
Globular clusters exist in this region just outside of the galaxy.
Halo region
galactic bulge
galactic disk
spiral density regions
- 6. Multiple Choice
Our Sun and solar system are located
near the edge of the Milky Way.
about 2/3 from the center of the Milky Way.
near the middle of the Milky Way.
near the galactic bulge.
- 7. Multiple Choice
The ancient Greeks named the Milky Way after comparing it to
a Greek god.
the candy bar.
a milky white river.
an ancient galaxy that existed a long time ago.
- 8. Multiple Choice
The Milky Way measures ____ light years in length.
26,000
1 million
1000
100 thousand
- 9. Multiple Choice
The Milky Way only measures about ____ light years in thickness.
100
100,000
1000
1 million
- 10. Multiple Choice
Figuring out what the Milky Way looks like is difficult because
we live outside of it.
it is impossible to send a space probe that far.
we live inside of it.
it is full of dark matter.
- 11. Multiple Choice
The Milky Way galaxy is thought to be a(n)
spiral galaxy
barred spiral galaxy.
elliptical galaxy.
irregular galaxy.
- 12. Multiple Choice
These type of clusters with variable stars orbit the Milky Way and other galaxies.
open clusters
closed clusters
globular clusters
stellar associations
- 13. Multiple Choice
Stars that are located in the galactic disk move
in mostly random orbits.
in retrograde orbits.
in mostly stable or orderly orbits.
around less massive black holes.
- 14. Multiple Choice
Stars that are located in the Halo regions of the galaxy orbit
in random or disorderly motions.
around black holes.
in stable or orderly motions.
in binary systems.
- 15. Multiple Choice
The Sun takes about ____ million years to orbit the galaxy once (or a galactic year).
100
225
300
425
- 16. Multiple Choice
Halo stars are very young and most likely formed before the Milky Way took shape.
True
False
- 17. Multiple ChoiceStars are formed in a large cloud of gas and dust called acumulonimbus cloudnebulaneutron starblack hole
- 18. Multiple ChoiceNebula's are mixtures of gases and what?cloudsstarstiny particlesdust
- 19. Multiple ChoiceWhat force acted on the massive nebula to collapse it and eventually form our sun?electrostatic forcestrong forceweak forcegravity
- 20. Multiple ChoiceWhat kind of galaxy is this?RingIrregularSpiralElliptical
- 21. Multiple Choice
Where is the Milky Way located in the universe?
Virgo Cluster
Solar system
Earth
Andromeda
- 22. Multiple Choice
How Old is the Milky Way?
8.7 billion years
13.7 billion years
Forever
17.9 billion years
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