Env Sci/Physics 141: Impact

Steven Dutch, Natural and Applied Sciences,University of Wisconsin - Green Bay
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1. The role of impact in Solar System history:
1. was most important early on.
2. has been increasing over time.
3. has been constant.
4. has been gradually decreasing.
2. The principal clue that the surface of a planet is geologically young
1. Atmosphere
2. Heavy cratering
3. Volcanoes
4. Lack of craters
3. The 1908 Tunguska Event is now believed to have been caused by what?
1. A rocky asteroid or meteor
2. A comet
3. A piece of anti-matter
4. A mini-black hole
4. When a meteor hits, the resulting crater is ______ the size of the meteor:
1. less than
2. about equal to
3. five times
4. 20-30 times
5. The energy of a moving body is related to its:
1. Diameter
2. Mass and Speed
3. Speed
4. Diameter and Composition
6. Small impacts produce
1. Simple Pit Craters
2. Central Peak Craters
3. Peak-Ring Craters
4. Multiple-Ring Impact Basins
7. The largest impacts produce
1. Simple Pit Craters
2. Central Peak Craters
3. Peak-Ring Craters
4. Multiple-Ring Impact Basins
8. The youngest lunar craters are marked by:
   1. rays
   2. central peaks
   3. terraces
   4. multiple rings

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Created 30 September 2008, Last Update 14 December 2009

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