AST 301 Exam 2 - Test Form A WINGET AST 301 EXAM 2 FALL...

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Test Form A WINGET AST 301 EXAM 2 FALL 2010 Instructions: Pick the single best answer and mark on the answer sheet provided. Use a No. 2 pencil. Make sure to include your name, UTEID, and Test Form on your scantron. 1. The best current theory for the formation of the moon is that it a. formed simultaneously with Earth (“sibling”) b. was formed elsewhere and was captured by Earth (“hitchhiker”) c. split off (fissioned) from Earth (“child”) d. is the result of a collision of a Mars-sized object with Earth (“impact trigger”) e. migrated in from Neptune (“lunar nomad theory”) 2. Which of the following has modified the surface of Mars? a. volcanism b. erosion c. flow d. cratering e. all of the above 3. Which of the following is evidence that the moon is geologically inactive? a. rocks found on the surface with ages of 4 billion years b. no plate motion detected c. no global magnetic field d. all of the above e. none of the above 4. Examination of moon rocks indicate a. the moon had an early global magnetic field b. cratering did not occur in the early solar system c. recent volcanic activity on the Moon d. an era of increased solar activity about 4 billion years ago e. all of the above 5. We have found evidence for impact cratering on which of the following a. Ganymede b. Mars c. Mercury d. Earth e. all of the above 6. Kepler’s third law (the ratio of the cube of the semi-major axis to the square of the orbital period) applies to a. all the terrestrial planets b. all the outer (giant) planets c. all the asteroids d. all of the above
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7. Why is a body like Neptune very nearly spherical while an asteroid is not? a. Asteroids don’t have atmospheres. b. Asteroids are not yet fully formed. c. Neptune has rings. d. Neptune is farther away from the sun, so less sunlight reaches its surface per unit area. e. Neptune has enough self-gravity to make it spherical due to its mass. 8. The inner planets are called terrestrial. This is because of the similarity in what physical property? a. magnetic fields b. atmospheres c. oceans d. methane exists at the triple point e. primarily rocky, heavy-element composition 9. The presence of ox-bows and gullies on the surface of Mars suggest that a. there is evidence for abundant life on that planet b. the planet lacks a significant atmosphere c. liquid water once flowed on that planet d. all of the above e. none of the above 10. Which of the following is the correct order if we order the inner planets by decreasing surface atmospheric pressure? a. Earth, Mars, Venus b. Venus, Earth, Mars c. Venus, Mars, Earth d. Mars, Earth, Venus e. Earth, Venus, Mars 11. While the inner, terrestrial planets are mostly dense and metal-rich, we find that the outer, giant planets are mostly composed of a. hydrogen b. sulfur c. methane d. argon e. none of the above 12. The Viking-type life experiments found no evidence for life in Antarctica (where it was tested, and where there is some life). This compromises the conclusion that it found no evidence for life on ____________. a. Venus
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This note was uploaded on 06/07/2011 for the course AST 301 taught by Professor Harvey during the Fall '07 term at University of Texas.

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AST 301 Exam 2 - Test Form A WINGET AST 301 EXAM 2 FALL...

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