mt1C - Astronomy 10 - Fall 2008 Midterm 1 October 7, 2008...

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Astronomy 10 - Fall 2008 Midterm 1 October 7, 2008 This test has 40 multiple-choice questions. You need Scantron form 882-E to take it. You are allowed to use a calculator and one page (double-sided) of written notes. All other materials and references should be put away. Note the list of equations and physical quantities attached to the back of this test. Be sure to write your full name , SID , and section number on your Scantron form. 1. THIS EXAM IS VERSION C. PLEASE ANSWER C TO QUESTION 1. 2. Everyone has looked up and seen the Moon in the night sky. Why can we see the Moon? (a) It emits its own visible light. (b) It reFects visible light. (c) It glows through radioactive decay. (d) It emits microwave radiation. 3. Which of the following lists has objects in order of increasing distance from the Sun? (a) terrestrial planets, Jovian planets, Kuiper belt, Oort cloud, asteroid belt (b) terrestrial planets, asteroid belt, Jovian planets, Kuiper belt, Oort cloud (c) Jovian planets, asteroid belt, terrestrial planets, Oort cloud, Kuiper belt (d) terrestrial planets, Kuiper belt, Jovian planets, asteroid belt, Oort cloud 4. Why is Venus’s surface hotter than Mercury’s? (a) Its thin atmosphere has no clouds to shield it from the Sun’s heat. (b) Its thick atmosphere has led to a runaway greenhouse e±ect. (c) Its magnetic ²eld deFects the solar wind from cooling it. (d) It is closer to the Sun. 1
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5. If the Moon is in the waning gibbous phase, then (a) there is a partial lunar eclipse. (b) how much of this face we can see depends on our latitude. (c) we can see less than half of the side facing Earth. (d) we can see more than half of the side facing Earth. 6. The n = 3 level of hydrogen has an energy E (3) = - 2 . 42 × 10 - 12 erg. The n = 2 level has an energy of E (2) = - 5 . 45 × 10 - 12 erg. When an electron jumps from n = 3 to n = 2, what is the wavelength of the photon it emits? (a) 656 nm (b) 1206 m (c) 327 cm (d) 163 mm 7. Which statement below is true about the Earth, Sun, and Moon? (a) The existence of the Moon’s craters shows that it is made of softer material than the Earth. (b) An astronaut on the far side of the Moon never sees sunlight. (c) The gravitational force of the Moon on the Earth equals that of the Earth on the Moon. (d) The gravitational force of the Moon on the Earth exceeds that of the Sun on the Earth. 8. The core of the Earth has a very high temperature, even billions of years after formation of the planet. Which factor helps maintain the high central temperature? (a) The core is radioactive. (b) The Earth’s magnetic Feld traps internal heat. (c) The Earth is rapidly rotating. (d) The interior is under high pressure. 9. Which of the following is a characteristic of the outer planets?
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This note was uploaded on 07/09/2010 for the course ASTRO 10 taught by Professor Norm during the Fall '06 term at University of California, Berkeley.

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mt1C - Astronomy 10 - Fall 2008 Midterm 1 October 7, 2008...

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