Exam_3_2008_-a

Exam_3_2008_-a - Name Geology 101 Exam 3 Friday This exam...

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Name: Geology 101 Exam 3 Friday, November 21, 2008 This exam consists of 40 multiple-choice questions. Only one answer of the four given is correct. Blacken the appropriate circle on your computer form to indicate your selection. Erase completely any stray marks on the form. NOTE : There are only four responses on your exam and ±ve on the computer form. Never blacken the ±fth circle on the computer form. 1. Wave refraction occurs because, as waves approach the shore: a. their velocity increases b. their velocity decreases c. the wave height decreases d. none of the above 2. The most important mechanism for generating waves is: a. gravity b. the Coriolis effect c. tides d. wind 3. High tides: a. are primarily due to the gravitational attraction of the Sun on the Earth b. are controlled by the rotation of the earth and occur once a day at a given area along the ocean margin c. are a result of the gravitational attraction of Venus, the nearest planet to the Earth d. are primarily a result of the gravitational interaction between the Moon and the Earth 4. The intensity of an earthquake: a. is measured using the Richter scale b. is a measure of the energy released by an earthquake c. is a measure of the amount of damage caused by an earthquake d. does not vary with distance from the epicenter 5. The magnitude of an earthquake: a. is measured using the Mercalli scale b. does not vary with distance from an earthquake c. is a measure of the amount of damage caused by an earthquake d. can be very high if the buildings are poorly constructed
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6. The elastic rebound theory: a. explains how energy is released in nuclear bomb tests b. explains how a large amount of energy stored in the earth's crust can be released very quickly c. applies only to very large earthquakes d. none of the above 7. Barrier islands: a. are stable features but are subject to erosion b. tend to migrate landward as sea level rises c. can often be stabilized with little cost d. are common along rocky shorelines 8. The earth's outer core is thought to be liquid because: a. S-waves do not pass through it b. P-waves do not pass through it c. neither P- nor S-waves pass through it d. both P- and S-waves slow down as they pass through it 9. The epicenter of an earthquake is deFned as: a. the place inside the earth where an earthquake started b. the place on the earth's surface where the most damage occurred c. the place on the earth's surface directly above the focus of the earthquake d. the region with the highest Mercalli intensity 10. P-wave velocity is 8 km/sec. S-wave velocity is 3 km/sec. If the P-wave arrives at a
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This document was uploaded on 10/28/2011 for the course GEOL 101 at UNC.

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Exam_3_2008_-a - Name Geology 101 Exam 3 Friday This exam...

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