Geographical Information Systems

GIS stands for

• Geographic Information System

• Generic Information System

• Geological Information System

• Geographic Information Sharing

The typical South African topographic map has a scale of.....

• 1:20

• 1: 50

• 1:50 000

• 1: 20 000

Google earth images are taken from.......

• high flying aircraft

• satellites

• the space shuttle

• all answers are correct

Satellites that collect data that constantly radiates from Earth is known as......

• active remote sensing

• passive remote sensing

• orbiting remote sensing

• satellite remote sensing

The detail with which a map shows the location and shape of a feature is the .......

• spatial aspect

• spatial component

• spatial resolution

• spatial revolution

The data stored by a GIS is made up of different ........

• layers

• zones

• sectors

• precincts

Spatial data is organised in 3 types

• points, arrows and polygons

• points, lines and polygons

• points, levels and shapes

• positions, ranks and shapes

The process of drawing a zone of a specific distance around a particular feature is known as ......

• bordering

• trimming

• edging

• buffering

The higher the spatial resolution the ......................... the image

• clearer and more detailed

• smaller and less detailed

• smaller and less inclusive

• clearer and more inclusive

The ........ model of data capture and representation represents objects in the real world as data stores in pixels

• vector

• path

• raster

• grid