The Evolution of Stars 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!

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Question 1 1. What begins at the moment a star is born?

Question 2 2. Rank these star colors from hottest to coolest.

Question 3 3. Where are most of the stars located on a Hertzsprung-Russell diagram?

Question 4 4. The stages of most stars life in order are:

Question 5 5. What do most stars in our galaxy become at the end of their lives?

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Question 6 6. Why does a brown dwarf form?

Question 7 7. A loose collection of stars (roughly 10 to 100) moving together through space but not bound to one another by gravity is better known as (a):

Question 8 8. T associations are:

Question 9 9. OB associations are:

Question 10 10. What spectral classification of star is the most common?

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Question 11 11. What spectral classification is our sun?

Question 12 12. What is the spectral order of stars from hottest to coolest?

Question 13 13. Using the main sequence turnoff method, find the age of the stars in a star cluster where a star just leaving its main sequence phase has a luminosity (L) of 5 solar units.

Question 14 14. What is the distance (d) to a star with a parallax (p) of 0.08 arc seconds?

Question 15 15. What do we use to calculate the radial velocity (vrad) of a star?

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Question 16 16. How do black holes grow?

Question 17 17. How do black holes form initially?

Question 18 18. How do astronomers find black holes?

Question 19 19. What is another term for luminosity?

Question 20 20. To what spectral class does the sun belong?

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Question 21 21. Spectral class is determined by which two factors?

Question 22 22. A pulsar appears to pulse because:

Question 23 23. A pulsar is:

Question 24 24. Which of these can spin fastest without being ripped apart?

Question 25 25. How many official constellations are there?

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Question 26 26. Which of these is the most massive type of star?

Question 27 27. A T Tauri star is:

Question 28 28. What spectral classification is the least common?

Question 29 29. To determine the age of stars, which of the following would you want to study?

Question 30 30. How are the biggest black holes formed?

The Evolution of Stars 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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