AST 301 - Test Form A WINGET AST 301 EXAM 1 FALL 2010...

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Test Form A WINGET AST 301 EXAM 1 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. A total solar eclipse can be observed a. for only a few minutes at any one place b. only from points along a narrow path on the Earth c. from the side of the Earth facing the Moon d. all of the above e. none of the above 2. Aristotle had a grasp of parallax (measuring the angle to a star six months apart, similar to holding your finger at arm's length and viewing it alternatively with your left or right eye), which he used to "prove" wrong the idea that the Earth orbited the sun. Where was his mistake? a. He underestimated the time it takes the Earth to orbit the sun. b. He did not account for the astrological implications of his observations. c. He underestimated the tremendous distance between our sun and other stars. d. He overestimated the radius of our Earth. e. He did not account for the elliptical nature of Earth’s orbit around the sun. 3. If the Earth orbited around the sun in the opposite direction (recall the classroom demonstration), then a. the seasons would be reversed b. the ecliptic would be reversed c. the sidereal day would be longer than the solar day d. the solar day would be longer than the sidereal day e. the solar day and the sidereal day would be the same length 4. What assumption (or assumptions) about the cosmos did Ptolemy and his contemporaries make that Copernicus claimed was erroneous? a. the sun is the center of the universe b. the Earth is at the center of the universe c. planets move counter-clockwise d. both b and c e. none of the above 5. A scientific experiment is a. never reproducible b. never repeatable c. never a test of a prediction d. all of the above
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e. none of the above 6. Gravity is responsible for a. the orbits of stars in a galaxy b. the orbits of planets around the sun c. the fall of an apple d. all of the above e. none of the above 7. The characteristic rotation of large storms on the Earth is the result of a. the Coriolis force (rotational velocities are slower at the poles than at the equator) b. the Earth's active asthenosphere c. the Earth's magnetic field axis not being aligned perfectly with the Earth’s rotation axis d. both a and b e. both a and c 8. One can define the distance scale in the Universe in terms of light-travel time. This means that a telescope is a sort of time machine. For example, the time for light to travel to us from the nearest large spiral galaxy (Andromeda) is closest to a. 8 minutes b. several hours c. several years d. several million years e. 500 billion years 9. If we observe an object accelerating, then we can use our knowledge of Newton's laws to conclude with absolute certainty that a. it is falling b. it is being acted on by a force c. it experiences gravitational deceleration d. all of the above e. none of the above 10. Technically, next year the moon will be
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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 at Austin.

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AST 301 - Test Form A WINGET AST 301 EXAM 1 FALL 2010...

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