Exam3a - 1 Which planet has the highest average surface temperature and why a Mars because of i ts red color b Venus because of i ts dense carbon

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1) Which planet has the highest average surface temperature, and why? a. Mars, because of its red color b. Venus, because of its dense carbon dioxide atmosphere c. Jupiter, because it is so big d. Mercury, because it is closest to the Sun e. Mercury, because of its dense carbon dioxide atmosphere 2) Which of the following statements is not an observed pattern of motion in our solar system? a. Most planetary orbits lie nearly in the same plane. b. Almost all moons orbit their planet in the same direction as the planet's rotation. c. Most planets rotate in the same direction in which they orbit. d. All planets orbit the Sun in the same direction. e. Most planets orbit at the same speed. 3) According to our theory of solar system formation, why do all the planets orbit the Sun in the same direction and in nearly the same plane? a. The laws of conservation of energy and conservation of angular momentum ensure that any rotating, collapsing cloud will end up as a spinning disk. b. The Sun formed first, and as it grew in size it spread into a disk, rather like the way a ball of dough can be flattened into a pizza by spinning it. c. The original solar nebula happened to be disk-shaped by chance. d. Any planets that once orbited in the opposite direction or a different plane were ejected from the solar system. e. Luck explains it, as we would expect that most other solar systems would not have all their planets orbiting in such a pattern. 4) Which of the following has not been detected around other stars in the Galaxy? a. flattened, spinning disks b. terrestrial planets c. a collapsing nebula of gas d. jovian planets e. strong stellar winds
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5) Which of the following is not evidence supporting the giant impact theory for the formation of the Moon? a.
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This note was uploaded on 12/05/2010 for the course ASTRO 101 taught by Professor Brittain during the Spring '10 term at Clemson.

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Exam3a - 1 Which planet has the highest average surface temperature and why a Mars because of i ts red color b Venus because of i ts dense carbon

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