Astronomy 1400 Review for Test 3

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

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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 . If we have a guest lecturer material from their lecture will be on the test The following is a review of the material discussed in class. All questions can be answered in a few words or sentences. 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 part of the material covered on the final. Chapter 7 1. Why is comparative planetology useful? Comparative planetology is the systematic study of the  similarities and differences among the planets, with the goal of obtaining deeper insight into how the solar  system formed and has evolved in time. HELPS US SEE THE FCUTURE OF OUR OWN PLANET 2. What is the composition of the Sun? 2 x 10 30 kilograms of gas. It is composed of about 75% hydrogen and 25% helium. About 0.1% is metals (made from hydrogen via nuclear fusion) 3. What is the name of the current orbiting solar observatory? (SOHO) SOLAR AND HELIOCENTRIC ORBITER. 4. What is going on with the Sun at Solar Max? Describe the activity of the sun at solar max. decreases sunspot activity and solar storms. 5. Does the sunspot activity of the Sun affect the Earth? How so? Yes it impacts the heat and magnetic field. 6. Why is the magnetic field of the Earth important ? Effects temperature of earth and climate 7. What are the major patterns of motion in the solar system? What are the exceptions? 1) The Sun, planets, and large moons generally rotate and orbit in a very organized way. (2) With the exception of Pluto, the planets divide clearly into two groups: terrestrial and jovian. (3) The solar system contains huge numbers of asteroids and comets. (4) There are some notable exceptions to these general patterns. 8. What are the characteristics of the two major types of planets? Terrestrial and jovian What is the composition of terrestrials? Jovians?  gaseous - gases make up almost the entire planet. its only terrain would be  a tiny ball no bigger than the earth's moon in its center. examples of this would be jupiter, saturn, neptune and uranus. terrestrial - opposite of gaseous, the planet a solid surface, and a thin atmopshere where its gases reside. examples of this would be  mercury, mars, earth. pluto is a mix of terrain and frozen gases, and has no atmosphere. 9.
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This note was uploaded on 12/01/2009 for the course ASTR 1400 taught by Professor Holtz during the Fall '07 term at Texas Tech.

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

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