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Stack #155241lucion
Stack #155241
| Question | Answer |
|---|---|
| geographic poles | -the points on the earths surface of the earth that are intersected by |
| parallels | -one set of lines describes positions north and south of the equator |
| latitude- | angular distance north and south of the equator measured in degrees |
| the worlds circumfrence is | 111km |
| munutes- | symbol:' each degree of latitude cosist of 60 equal parts |
| seconds | -symbol:" each munute divided into 60 equal parts |
| meridians- | used to establish east or west locations |
| prime meridian- | passes through greenwich engand |
| longitude- | angular distance measured in degrees east or west of the prime meridian |
| at 80 degrees north one degree of longitude equals only about | 20km |
| great circle- | imaginary line often used in navigation any line that divides the earth and divides the globe into halves |
| magnetic compass- | idicates direction cause the earth has magnetic properties |
| what are the advantages of the mecator map projection? | 1.all compass directions appear as straigh lines 2.the 4 main points of the compasss are located along the 4 sides of the map 3.all meridians and parallels are show clearly |
| disavantages | 4.not accurate the meridians appear to be straght paralle lines 5.distorts distance between regions of land 6.distorts the size of areas near the poles |
| how is a gnomic projection made? | a sheet of pater toughing a lighted globe only at one point |
| advantages | 1.little distortion occurs at the point of contact 2.grat help to navigators in ploting a great circle |
| disavantages | 1.everything is distorted except for the point of contact |
| how is a conic map made? | a paper cone placed over a lighted globe |
| advantages | 1.the area pinpointed by the cone gives a close up veiw of a small area of a map |
| disavantages | 1.only the pinpointed area would be accurate |
| legend- | a list of symbols and their meanings(key) |
| scale- | indicates the relationship between distance as shown on the map and acual distance geomatic poles-points on the earths surefacejust above the poles of the imaginary magnet |
| magnetic declination- | the angle between the direction in which the compass needle points |
| true north- | declention is 0 |
| geographic north pole is | true north |
| geomagnetic north- | not completely straight up and down |
| elles mere island canada | where compass would take you |
| map projection | -a flat map that represents the 3-d curved surace of a globe |
| no flat map is 100% | accurate,distorted |
| 3 common map types: | 1.mecator 2.gnomonic 3.conic |
| how you make a mecator projection | wrap a cylinder of paper around a lighted globe- |
Created by:
hollisterx2013@aim
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