Unit 2 Practice Quiz

Unit 2 Practice Quiz - Points Awarded Points Missed...

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Points Awarded 3 Points Missed 2 Percentage 60% 1. Most earthquakes: A. Are caused when rocks on opposite sides of a break, or fault, in the Earth’s crust move in different directions, and the fault is well-lubricated all the time so the rocks can move freely. B. Are caused when rocks on opposite sides of a break, or fault, in the Earth’s crust move in different directions, and the fault is poorly lubricated, so the rocks along the fault get stuck for a while and bend their neighbors before breaking free and moving. C. Are caused by Diet Coke drinkers kicking Pepsi machines at Penn State. D. Are caused when rocks on opposite sides of a break, or fault, in the Earth’s crust move in the same direction at the same speed. E. Are caused by “implosion” of minerals taken to great depth in the Earth by tectonic processes. There may be “implosion” earthquakes, but they are rare. Some breaks in the crust are well-lubricated and don’t make earthquakes. If rocks on opposite sides of a break move in the same direction at the same speed, then there will be no relative motion between those rocks, and they won’t make earthquakes. But when rocks try to move in opposite directions but are stuck, they bend like springs and then break, shaking things and knocking them down in an earthquake. And Diet Coke drinkers who have not yet had their caffeine are unlikely to be sufficiently agitated to kick the Pepsi machines hard enough to make the larger earthquakes that are observed. Points Earned: 1/1 Correct Answer: B Your Response: B 2. The above diagram is from one of the Geomations in the unit. It shows three possible fault styles. A and B are cross-sections, with a collapsed building on top to show you
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This note was uploaded on 01/20/2010 for the course GEOSC 010 at Penn State.

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Unit 2 Practice Quiz - Points Awarded Points Missed...

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