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The Universe Quiz 25 (25 MCQs)

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1. What is the space and all the matter and energy that makes it up
2. Galaxy is a collection of
3. If a star or galaxy is moving away from us, the emission lines will be what?
4. The Big Bang Theory explains the formation of the _____
5. Which piece of evidence supports the Big Bang theory?
6. What is the name of the scientific theory that explains how the universe was created?
7. This has more mass than a planet but less mass than nebula.
8. Since the Big Bang, and even today, the universe is still _____
9. Put in order from smallest to largest:Star, universe, galaxy, solar system.
10. Who came up with the Big Bang Theory?
11. The critical mass-energy density is the mass-energy density required for a _____
12. Earth's tilted axis affects the strength of sunlight in different places on Earth's surface. If you are in an area that is receiving less direct sunlight, where are you located?
13. The theory of the origin of the universe that is most popular among space scientists suggests that our universe originated how long ago?
14. How does the abundance of hydrogen and helium support the Big Bang Theory.
15. All stars start as gas and dust in a(n)
16. What is the definition of isotropic?
17. According to the big bang theory, all the contents of the universe was compressed under extreme _____
18. Which is the largest?
19. What two characteristics are used to plot stars on the HR diagram?
20. What is in between mars and jupiter
21. What does the red-shift of light emitted by stars tell us about our universe?
22. The "afterglow" of the energy from the origin of the universe that we see today is called _____
23. Why does the Sun appear so large and bright?
24. What does the strong nuclear force control?
25. Which is one piece of information that astronomers use to calculate the age of the universe?
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