Mapwork (Paper 2)

Question 1

What is the word for a map-maker?

Answer 1

Cartographer

Question 2

How much does latitude and longitude does one topographical map cover?

Answer 2

15 minutes by 15 minutes (640km^2)

Question 3

How big are the blocks that SA is divided into?

Answer 3

1 degree by 1 degree (with 16 maps in each)

Question 4

How do you convert DMS to Decimal Degrees?

Answer 4

Leave degrees
Add to
Minutes divided by 60
Add to
Seconds divided by 3600

Question 5

Definition of magnetic bearing

Answer 5

The angle between magnetic north and a given point

Question 6

Definition of magnetic declination

Answer 6

The angle of difference between the direction of True North and Magnetic North

Question 7

What is MD equal to

Answer 7

(annual change x year difference) + total change

Question 8

What is MB equal to

Answer 8

TB + MD

Question 9

Where do shadows fall in the morning?

Answer 9

To the SW

Question 10

Where do shadows fall in the afternoon?

Answer 10

To the SE

Question 11

Definition of relief

Answer 11

Shape (in terms of height) of the Earth’s surface

Question 12

Give TWO examples of things which show relief

Answer 12

Spot Heights

Trig Beacons

Question 13

Definition of Vertical Exaggeration

Answer 13

Amount by which the vertical scale of a cross section is bigger than the horizontal scale

Question 14

Formula for Vertical Exaggeration

Answer 14

VS/HS

vertical scale over horizontal scale

Question 15

How is gradient shown?

Answer 15

As a ratio of (Height:Distance)

Question 16

What is the main geographical factor that will influence land use?

Answer 16

Relief

Question 17

Where will settlements definitely NOT be found

Answer 17

On steep slopes

Far away from rivers

Question 18

Definition of aspect

Answer 18

The compass direction that a slope faces

Question 19

Will crops be grown on the S or N facing crops in the SH?

Answer 19

On the sunnier, north-facing slopes

Question 20

Does forestry take place on steep slopes or gentle slopes?

Answer 20

Steep slopes

Question 21

Does crop farming take place on steep slopes or gentle slopes?

Answer 21

Gentle slopes

Question 22

Which kind of rivers indicate a good water source

Answer 22

Perennial rivers

Question 23

Which TWO things indicate seasonal rainfall?

Answer 23

Non-perennial rivers

Storage dams

Question 24

Which two features indicate fire management in mountainous areas?

Answer 24

Jeep Tracks

Firebreaks

Question 25

Which THREE things indicate lower rainfall in an area?

Answer 25

Irrigation systems Sparse vegetation Rock outcrops

Question 26

What indicates high rainfall in an area?

Answer 26

Forests

Question 27

What are rural settlements most influenced by?

Answer 27

Drainage | Rivers

Question 28

What FOUR things is the location of urban settlements influenced by?

Answer 28

Mineral Resources Transport Routes Rivers Poorts in the mountain

Question 29

Which THREE things indicate crop farming?

Answer 29

Silos Good irrigation Near to permanent water sources

Question 30

What one thing indicates livestock farming?

Answer 30

Wind pumps

Question 31

Which FIVE things shows a commercial farm on the topographical map?

Answer 31

``` NAME and NUMBER in centre of grey lines Other buildings Round cultivated fields Water facilities (pumps, canals or furrows) Electricity (Power lines) ```

Question 32

Where are subsistence farmers' settlements most frequently located?

Answer 32

On hilltops

Question 33

What influences the location of transport routes?

Answer 33

Relief

Question 34

At what angle to the horizontal is a vertical photograph taken

Answer 34

90 degrees to the horizontal

Question 35

At what angle is a Low-angle Oblique photograph taken?

Answer 35

30 degrees to the vertical

Question 36

Name FIVE things associated with a Low-angle Oblique photograph

Answer 36

30 degrees to the vertical ``` Only small area can be seen Foreground is distorted Heights can be compared Features are recognisable Horizon cannot be seen ```

Question 37

Name THREE things associated with a High-angle Oblique photograph

Answer 37

60 degrees to the vertical Scale is distorted Large area is in the photograph Horizon can be seen

Question 38

At what angle is a High-angle Oblique photograph taken?

Answer 38

60 degrees to the vertical

Question 39

Define remote sensing

Answer 39

Gathering information about an object without making physical contact with it

Question 40

Define data processing

Answer 40

Analysing and sorting data once it has been added to a GIS

Question 41

Define data pre-processing

Answer 41

Making data ready for computerisation

Question 42

Define data acquisition

Answer 42

Process of acquiring data

Question 43

Define spacial data

Answer 43

Data referring to a place or position

Question 44

Define data

Answer 44

Information that is stored, sorted and produced by a computer

Question 45

Define non-spacial data

Answer 45

Data that is not linked to any place or location

Question 46

Define attributes

Answer 46

The attributes that describe a feature

Question 47

Define spacial resolution

Answer 47

Scale or level of detail of work we are dealing with

Question 48

Define GIS

Answer 48

Stores, manages, analyses and displays data

Question 49

What is raster data?

Answer 49

Is is data that has pixels (photographs)

Question 50

What is the spacial resolution of raster data linked to?

Answer 50

Spacial resolution is the pixel size

Question 51

What is vector data?

Answer 51

An example could be a map Made up of: Arrays of coordinates Points, lines and polygons

Question 52

What is the spacial resolution of vector data?

Answer 52

The accuracy of the map

Question 53

What is spectral resolution?

Answer 53

Range of wavelengths that an imaging system can detect

Question 54

If the the spectral resolution is high, are the bands large or small?

Answer 54

Small bands

Question 55

What is raster data mostly generated by?

Answer 55

Satellites

Question 56

What do satellites do in terms of GIS?

Answer 56

Measure amounts of surface reflection | Same as for digital camera

Question 57

What is a feature?

Answer 57

When more complex ideas are added onto basic vectors

Question 58

What is a spacial object?

Answer 58

When even more complex ideas are added onto a FEATURE

Question 59

What does data capture involve?

Answer 59

Georeferencing This has to be done when overlaying maps in a GIS This is associating something with a location