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Test Your Knowledge

Test your knowledge about astronomy related subjects. Read the question and click the radio button under each question to record your answer. Your answers are private and are not submitted to a collection location. The answer key is at the bottom of the page.

1. In what arm of the Milky Way Galaxy do we reside?

2.What type of galaxy is the Milky Way?

3. What is the closest star system to the Solar System?

4. Since the temperature of a star is related to its color, what stars are hottest?

5. What type of nebulae have no clear beginning or end?

6. What gives a nebula its color?

7. Located just beyond the orbit of Neptune, this disc contains millions of icy objects, including Pluto, the largest object in the disc.

8. How do astronomers know if a galaxy is moving away from Earth?

9. When does a main sequence star reach the end of its life cycle?

10. What determines if a star will become a black hole at the end of its life?

11. Fill in the blank. Planets shine by _____ light while stars shine by producing their own light.

12. They are called “failed stars” because the object could not sustain the fusion of hydrogen needed to form a star.

13. What dwarf planet is located in the Kuiper Belt, just beyond Pluto?

14. What is cosmology?

15. What term describes the alignment of three celestial bodies?

ANSWERS

• 1. A
• 2. A
• 3. A
• 4. A
• 5. A
• 6. B
• 7. B
• 8. B
• 9. B
• 10. B
• 11. C
• 12. C
• 13. C (pronounced mah-kee-mah-kee)
• 14. C
• 15. C (pronounced siz-i-jee)