UW ASTR 101 - Study Notes (22 pages)

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Study Notes



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Study Notes

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Pages:
22
School:
University of Washington
Course:
Astr 101 - Astronomy
Astronomy Documents

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Final Astronomy 102 Fall 2005 1 The exam should take 2 hours to complete 2 There are 100 multiple choice questions 3 Choose the one alternative that best completes the statement or answers the question 4 If you leave the classroom during the exam you cannot return 5 When you are done please turn in this copy of the test and leave the room quietly 6 If you have a question please raise your hand 7 Have a great vacation Final Astronomy 102 Fall 2005 1 Choose the best arrangement of the following items according to size from the smallest to the largest A atom planet Sun galaxy cluster of galaxies B proton galaxy open cluster cluster of galaxies C proton star galaxy Solar System D Sun Solar System cluster of galaxies globular star cluster 2 Which of the following is the most massive A The Sun B The brightest main sequence star in the Large Magellanic Cloud C The planet Jupiter D The neutron star at the center of the Crab Nebula E The white dwarf Sirius B 3 Suppose you were standing on a planet that had the same mass as the Earth but whose radius was three times larger Compared to the surface of the Earth the gravitational force you would feel on the surface of the planet would A be the same because the masses of both planets are identical B be 3 times weaker C be 3 times stronger D be 9 times weaker E be 6 times weaker 4 Suppose there were some remarkable breakdown in physics and the radius of the Sun instantly shrank to less than its Schwarzschild radius without changing its mass Which of the following would be true A The Sun would become a black hole because its radius was smaller than the Schwarzschild radius B The radius of the Earth s orbit would shrink because gravity depends on radius C The radius of the Earth s orbit would expand because the Earth was now farther away from most of the Sun s mass D The Sun would still be a main sequence star since it was still 1 solar mass E The temperature of the Sun would be cooler since it was now denser Page 1 of 20 5 Why does



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