Assignment 7 



The Governing Fundamentals of Meteorology 



Text: Pages 249 - 267 



Learning Objective: Recognize the 

 relationship beween the sun's energy 

 and the earth's motion in the crea- 

 tion of day and night, heat zones, 

 and seasons of the year. 



7-1. The sun radiates electromagnetic energy in 



all directions. Most of that energy is in 



the form of 



1. heat waves 



2. light waves 



3. electric waves 



4. ultraviolet waves 



7-2. The surface of the sun is referred to as 

 the 



1. chromosphere 



2. corona 



3. photosphere 



4. solar atmosphere 



7-3. Which of the following comprise the solar 

 atmosphere? 



1. Photosphere, radiative zone, and 

 corona 



2. Photosphere, chromosphere, and corona 



3. Chromosphere, radiative zone, and 

 corona 



4. Chromosphere, convective zone, and 

 corona 



7-4. The greatest solar flare activity is gener- 

 ally associated with the maximum 



1. plage activity 



2. chromosphere activity 



3. magnetic activity 



4. sunspot activity 



7-5. Of the four motions, which two are the 

 most important to meteorology? 



1. A and B 



2. A and C 



3. B and C 



4. C and D 



7-6. Which motion is responsible for daylight 

 and darkness for a given area? 



1. A 



2. B 



3. C 



4. D 



7-7. The area to the north of the Arctic Circle 

 is in darkness during which period of the 

 earth's revolution? 



1. The vernal equinox 



2. The summer solstice 



3. The winter solstice 



4. The autumnal equinox 



In items 7-8 through 7-11, select from column B 

 the location on the earth which receives the 

 most perpendicular rays of the sun on each date 

 listed in column A. 



Dates 



7-8. March 21 



7-9. June 21 



7-10. September 22 



7-11. December 22 



B. Locations 



1. Latitude 23 1/2° S 



2. Equator 



3. Latitude 23 1/2° N 



Items 7-5 and 7-6 refer to the following 

 motions of the earth: 



A. Rotation on its axis 



B. Revolution around the sun 



C. Precessional motion 



D. Solar motion 



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