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Chapter 2 Stars Review. 1. Nebula. . Set up a diagram on your sheet of paper and label the starts:
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1. Nebula . Set up a diagram on your sheet of paper and label the starts: Black hole Super Red Giant Main sequence star Supernova Massive Main Sequence Nebula Neutron star White dwarf Red giant
2-4 H-R Diagram • What color is Deneb? • Which star has a higher suface temperature • Sun • Procyon • Betelgeuse • Sirius B • What is the relationship between surface temperature and brightness of main sequence stars?
Chapter Review Questions 5. • Which of the following stars have the highest temperature? • A. Betelgeuse, a red star • B. Rigel, A blue-white star • C. Aldebaran, an orange star • D. Canopus, a yellow star 6. • What are the letters used to classify stars from hottest to coolest?
Chapter Review Questions 7. • How does the color of a star relate to its temperature? 8. • List the colors of stars from the lowest temperature to highest temperature.
Chapter Review Questions 9. • How do scientists use spectra to study stars? 10. • Compare and contrast the Continuous Spectrum, Emission (Bright Line) Spectrum and Absorption (Dark Line) Spectrum. • Know what substances produce each type of spectra.
11. Chapter Review Questions • Absolute magnitude is_________________, and apparent magnitude is ______________. • A. a star’s apparent shift in position, how bright a light looks. • B. how bright a light looks, a stars apparent shift in position • C. the actual brightness of a light, how bright a light looks. • D. how bright a light looks, the actual brightness of a light 12. • Which of the following stars are the brightest? • A. a 1st magnitude star • B. a -1.4 magnitude star • C. a 29th magnitude star • D. a 6th magnitude star
Chapter Review Questions 13. • The H-R Diagram is a graph showing the relationship between? • A. rate of speed and absolute magnitude • B. rate of speed and apparent magnitude • C surface temperature and absolute magnitude • D. Surface temperature and apparent magnitude 14. • In the H-R diagram we constructed in class, which of the following locations was our sun found? • A. upper left corner B. upper right corner • C. bottom right corner D. center of the main sequence
Chapter Review Questions 15. • A ______________ is the leftover center of an old star. • A. red giant B. red dwarf • C. supergiant D. white dwarf 16. • A ______________ is the death of a large star by explosion. • A. red giant B. supergiant • C. supernova D. white dwarf
Chapter Review Questions • Describe the difference between a NEUTRON star and a PULSAR. 17.
Chapter Review Questions 18. • Describe the following galaxies (the more information you can provide the better) • Irregular Galaxy • Elliptical Galaxy • Spiral Galaxy
Chapter Review Questions 19. • Explain the Doppler effect and how it provided evidence of the universe expanding (use red shift and blue shift in your description).
Chapter Review Questions 20. • How is parallax affected if the observer is far away from the object? • What is parallax? (think thumb exercise) 21. 22. • How is parallax affected if the observer is close to the object being observed?