Mapwork

Question 1

What’s the formula for working out degrees/minutes/seconds?

Answer 1

(Cm of co-ord/total cm in 1’ or 1degree) x 60

Question 2

What are signs that show the direction the river flows? (5)

Answer 2

Towards the sea
From higher altitude to lower altitude
Contours bend upstream
Dam wall is downstream
Tributaries join at an acute angle where they meet the river

Question 3

What’s the formula for distance?

Answer 3

Map distance x scale / 100 000

Question 4

What’s the formula for area?

Answer 4

Length x breadth

Question 5

What’s the formula for gradient?

Answer 5

VI/HE
(Difference in height) / (Distance)

Question 6

How should gradient always be represented?

Answer 6

As a ratio
No units needed

Question 7

How do you work out magnetic bearing?

Answer 7

Geographic bearing + magnetic declination

Question 8

What’s the formula for vertical exaggeration?

Answer 8

VS/HS
(Vertical scale/horizontal scale)

Question 9

What are ways to prove seasonal rainfall?

Answer 9

Many dams
Furrows
Many non-perennial rivers
Wind pump
Reservoirs

Question 10

What’s are reasons for cultivation of rows of trees? (3)

Answer 10

Wind breaks
Reduces soil erosion
Aesthetic

Question 11

What’s the shape of rural settlements?

Answer 11

Linear

Question 12

What are the street patterns? (3)

Answer 12

Radial concentric
Grid iron
Planned irregular

Question 13

What are advantages of grid iron?

Answer 13

Easy to layout and subdivide
Easy to navigate
Oldest part of town

Question 14

What’s a disadvantage of grid iron?

Answer 14

Causes traffic congestion because of all the intersections

Question 15

How to prove farming is commercial?

Answer 15

Large area
Farm names
Dams
Irrigation
Farm boundaries

Question 16

Identify dominant primary activity

Answer 16

Power supply
Mining
Farming

Question 17

What are some examples of recreational activities?

Answer 17

Rifle range
Hiking
Picnics
Wine tasting
Fishing

Question 18

What’s the definition of GIS?

Answer 18

A computer application that is used to store, view and analyse geographical information, especially maps.

Question 19

What are sources of information of GIS?

Answer 19

Statistics
Topographical maps
Aerial photographs
GPS
Satellite images
Surveys
Reports

Question 20

What are the components of GIS?

Answer 20

Hardware
Software
Data
People
Methods

Question 21

What are some uses of GIS?

Answer 21

Produces maps for display and can show many different kinds of data on one map such as streets, buildings and vegetation.
Users can select information from layers of data
You can have as many layers as you have data layers

Question 22

What are data layers

Answer 22

Map layers showing different types of information that are projected on top of one another.

Question 23

What are examples of uses of GIS?

Answer 23

Used by farmers to match crops to soils
Used by businesses to plan the opening of new branches
The best locations for building schools

Question 24

What are some examples of application of gis?

Answer 24

Infrastructure-the best area to build
Newspaper determine distribution areas
Retail companies find locations for new sites
Schools plan bus routes
Meteorologists- prepare weather forecasts
Disaster management - prepare for and manage natural disasters

Question 25

What is remote sensing?

Answer 25

The science of acquiring information about the earths surface from a distance without being in direct contact with it.

Question 26

What are some examples of remote sensing images?

Answer 26

Satellite images, aerial photographs, orthophotos

Question 27

How might shops make use of gis?

Answer 27

Available plots
Cost of plots
Distance to other shops
Client base
Client buying habits

Question 28

How would gis help flood

Answer 28

Relief (contours)
History
Rainfall figures
50 year flood line
Development above flood like
Residential areas affected
Evacuation routes

Question 29

How would gis be used toward crime

Answer 29

Type
Location
Time
Frequency
Risk zones