Astronomy review test 3

Astronomy review test 3 - Astronomy 1400 Review for Test 3...

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Astronomy 1400 Review for Test 3 Please make sure you Carefully read each chapter Study the “ summary of key concepts ” at the end of each chapter. Know the material we have covered in class attending class is important ! The following is a review of the material discussed in class. All questions can be answered in a few words or sentences. All of these questions were answered in class or are in the text. If you need help with a particular question I will be happy to help provided you first make a significant EFFORT to answer the question on your own. Please bring an orange scantron and #2 pencil to the test: it will be 50 questions multiple choice. Know your “R” number!! You will not need a calculator. All of this review may not be on test 3—the extent of coverage will be announced in class. Anything not covered on test 3 will be covered on the final. For Chapter 7, begin with question 13 (1 through 12 were on test 2). Chapter 7 1. Why is comparative planetology useful? - To learn the similarities and differences of the planets. 2. What is the composition of the Sun? - Composition (by mass): 98% hydrogen and helium, 2% other elements. 3. What is the name of the current orbiting solar observatory? - NASA 4. What is going on with the Sun at Solar Max? Describe the activity of the sun at solar max. - The sun’s magnetic field lines are the most distorted due to the magnetic field on the solar equator rotating at a slightly faster pace than at the solar poles. - The number of sunspots rises.
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5. Does the sunspot activity of the Sun affect the Earth? How so? - Yes. Because the sunspot activity releases hot matter called plasma up and away from the Sun in the form of a flare. Solar flares emit x- rays and magnetic fields which bombard the Earth as geomagnetic storms. 6. Why is the magnetic field of the Earth important? - The magnetic field helps us navigate, shows us north and south like a compass. 7. What are the major patterns of motion in the solar system? What are the exceptions? - The Sun, planets, and large moons generally orbit and rotate in a very organized way. - Exceptions for example: Earth is unique among the inner planets in having a large moon, and Uranus had an odd sideways tilt 8. What are the characteristics of the two major types of planets? - The small, rocky planets that are close together and close to the Sun. - The large, gas-rich planets that are farther apart and farther out. 9. What is the composition of terrestrials? Jovians? - Are four planets of the inner solar system: Mercury, Venus, Earth, and Mars. (Terrestrial means “Earth-like.”) - Are the four large planets of the outer solar system: Jupiter, Saturn, Uranus, and Neptune. (Jovian means “Jupiter-like.”) 10. How do terrestrials and Jovians compare in density? Mass? Number of Moons? -
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This note was uploaded on 03/05/2010 for the course ATRONOMY 2300 taught by Professor Balls during the Spring '10 term at Texas Tech.

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Astronomy review test 3 - Astronomy 1400 Review for Test 3...

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