Question 1
[6]
a) Explain what a GIS is.
b) What can you do with a GIS?
Question 2
[12]
Convert the following coordinates to decimal format.
1. 20° 18.9' S, 15° 54.8' E
2. S 25° 25.1251', E 19 ° 19.2581'
3. 18° 59' 55" s, 23° 4' 22" w
Question 3
[6]
You start a new project in QGISand you add roads.km I and regions.shp to the project. The file
extension "shp" stands for ........... Next to regions.shp, two other files are needed to open regions:
.......................a. nd ............................The files roads and regions are two ......................................of your
GIS project. Both files contain data in ....................format.
Question 4
[4]
What is the difference between geographical and projected coordinates?
Question 5
[18]
Indicate if following statements are True or False. If false, correct the statement.
1. A GPScollects geospatial data.
2. Visible light contains less energy than radio waves.
3. A vector line consists of minimum two vertices.
4. Vector data are made out of pixels.
5. Satellite images record the light absorbed by objects.
6. Chlorophyll absorbs green light.
7. Longitude varies from 0° at Greenwich to 180° east or west.
8. UTM (Universal Transverse Mercator) is a projected coordinate system.
9. A GPSreceiver allows to determine the exact location for any spot on earth.
10. Topographic maps always show contour lines.
11. Coordinates of latitude are represented on the X-axis of a map.
12. Electromagnetic radiation travels at the speed of sound (343 m/s).
13. Humans emit infrared radiation.
Question 6
[9]
How can you obtain GIS data for your study area?
2