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Chapter 25 Concept Questions
Name:_______________________________Date:___________________
1.
What can astronomers learn by studying a star’s color?
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2. How does distance affect parallax?
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3. What factors determine a star’s apparent magnitude?
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4. The H-R diagram shows the relationship between what two factors?
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5. At what point is a star born?
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6. What causes a star to die?
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7. Describe the life cycle of the sun.
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8. How do galaxies differ?
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9. What evidence indicates that the universe is expanding?
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10. What is the big bang theory?
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Chapter 25 Concept Questions
Name:_______________________________Date:___________________
1. Absolute magnitude:
2. Apparent magnitude:
3. Big band theory:
4. Binary star:
5. Black hole:
6. Cepheid variable:
7. Constellation:
8. Galaxy cluster:
9. Hubble’s law:
10. Light-year:
11. Main-sequence star:
12. Nebulae:
13. Neutron star:
14. Nova:
15. Protestar:
16. Pulsar:
17. Red giant:
18. Super giant:
19. Supernova:
20. White dwarf: