CEOE Earth Science: Galaxies 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. The name for a cluster of a few dozen galaxies that includes the Milky Way Galaxy is:

Question 2 2. The time it takes for the sun to revolve around the center of the Milky Way Galaxy is known as the:

Question 3 3. A cluster containing over a thousand galaxies is called a(n):

Question 4 4. Which type of galaxy do astronomers believe is very evolved?

Question 5 5. A spherically shaped cluster is best termed as a(n):

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Question 6 6. Our solar system is:

Question 7 7. What is the appropriate definition of planetary geology?

Question 8 8. This is the relationship between a Cepheid variable star's period of pulsation and its intrinsic brightness:

Question 9 9. Matter that is invisible, located in the galactic corona, which gives our galaxy a lot of mass is termed:

Question 10 10. This is a low-density and low-luminosity spherical distribution of matter surrounding a galaxy that extends great distances beyond the edge of a galaxy's visible disk:

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Question 11 11. Our solar system's biggest planet is:

Question 12 12. A cluster containing less than a thousand galaxies is called a(n):

Question 13 13. Based on what you learned in this lesson, what would you mainly expect to inhabit the central bulge?

Question 14 14. The iron in your blood and the calcium in your bones all originally came from:

Question 15 15. The universe is mainly made of:

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Question 16 16. The halo and central bulge of the galaxy are known as the:

Question 17 17. What term is used to describe a celestial large body that revolves around a star?

Question 18 18. How do we know a lot of mass exists outside the radius of our sun's orbit?

Question 19 19. The hypothesis that states that large galaxies like the Milky Way Galaxy formed by way of gravitational collapse from a single, turbulent, large gas cloud, is called:

Question 20 20. The hypothesis that states large galaxies like the Milky Way Galaxy formed from the combinations of small galaxies and star clusters, is called the:

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Question 21 21. Based on what you learned in this lesson, newer stars would be expected to have:

Question 22 22. These are objects, such as supernovae and supergiants, whose luminosity is known and are used to help find intergalactic distances:

Question 23 23. What type of galaxy is shown in this picture?

Question 24 24. If you venture outside and see a band of light, the Milky Way, on a dark night, then you know you are:

Question 25 25. A galaxy is:

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Question 26 26. By definition, you know that galaxies contain star clusters, or collections of stars. One type of star cluster is the globular cluster. It contains very old stars. Another type is known as an open cluster, containing young stars. Generally, where would you expect to find such star clusters? Hint: use what you've learned in this lesson about the age of stars, their locations, and the structure of the galaxy to help you answer this question.

Question 27 27. The universe is:

Question 28 28. How old do we believe our galaxy to be?

Question 29 29. In which type of galaxy are the stars in random orbit instead of rotating?

Question 30 30. This is a region of the H-R diagram where pulsating variable stars are located, such as Cepheid variable and RR Lyrae stars

CEOE Earth Science: Galaxies 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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