Star Formation & Evolution Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. Which of these is NOT an observation about solar flares that scientists have made?

Question 2 2. How do solar flares form?

Question 3 3. What are the names of the two famous massive stars in the constellation Orion?

Question 4 4. How long do massive stars stay on the main sequence in comparison to average stars?

Question 5 5. What is a red supergiant?

Page 2

Question 6 6. Only large stars with a mass of about ________ will go on to become red supergiants.

Question 7 7. What will likely happen to Betelgeuse sometime in the next million years?

Question 8 8. Which star in the Orion constellation is Betelgeuse?

Question 9 9. Why does the sun's chromosphere appear red during a solar eclipse?

Question 10 10. Which area of the sun's chromosphere has the greatest temperature?

Page 3

Question 11 11. How many years will it be before the sun turns into a red giant?

Question 12 12. What is the first stage of a main sequence star turning into a red giant?

Question 13 13. What begins at the moment a star is born?

Question 14 14. What happens when a main sequence star depletes the supply of hydrogen in its core and nuclear fusion slows down?

Question 15 15. What is the average number of sunspots in a sunspot group?

Page 4

Question 16 16. Sunspots are located on what layer of the sun?

Question 17 17. How long will it likely take for a white dwarf to cool?

Question 18 18. What is the basic size of an average star during its main sequence phase?

Question 19 19. What is the temperature of the inner surface of the Sun's photosphere?

Question 20 20. When people talk about the diameter of the Sun, they usually mean the diameter of which layer?

Page 5

Question 21 21.

What will remain after a star goes supernova?

I. White Dwarf

II. Black Dwarf

III. Neutron Star

IV. Black Hole

Question 22 22.

Which of the following stars will eventually die as a supernova?

I. Any star smaller than the sun

II Any star the same size as the sun

III Any star 10 to 20 times larger than the sun

IV Any star greater than 20 times the size of the sun

Question 23 23. A white dwarf is at which stage of its life?

Question 24 24. What do scientists think a white dwarf's fate is?

Question 25 25. How long do supergiant stars last compared to smaller stars?

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Question 26 26. How does a supergiant star end its life cycle?

Question 27 27. Which two qualities are plotted on an H-R diagram?

Question 28 28. What causes the end of the main sequence phase?

Question 29 29. Which of the following gas giants is recognized by its rings?

Question 30 30. Which of the following gas giants has the most number of moons or satellites?

Star Formation & Evolution Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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