Geo/NW
Mapwork Task
PROVINCIAL ASSESSMENT
GRADE 10
MAPWORK TASK
MARCH 2023
MARKS:
60
TIME:
1 HOUR
Section A
Section B
Section C
20
24
16
This Question Paper Consists of 10 Pages.
1
March 2023
Geo/NW
Mapwork Task
March 2023
RESOURCE MATERIAL:
1.
2.
An extract from topographic map 2629DB ERMELO.
An extract from Orthophoto map 2629DB 5 ERMELO.
INSTRUCTIONS:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Write your name in the space provided above.
Answer all questions in the spaces provided on this question paper.
You have been provided with an extract from topographic map 2629DB ERMELO and an
extract from Orthophoto map 2629 5 ERMELO which is part of the mapped area on the
Topographic map.
You must hand in the topographic Map and Orthophoto map (on the back side) at the end
of this assessment.
You may use the blank page at the back of this question paper for calculations etc.
Do NOT detach it from this document, it is merely there as additional space for your use.
Show ALL calculations and formulae where applicable. Marks will be awarded for this.
Indicate the unit of measurement in your FINAL answer. Ensure that all units are
maintained throughout your calculations and final answer.
You may use a non-programmable calculator.
The area demarcated in RED on the topographic map is the area covered by the
Orthophoto map.
Read the “Background information relating to the town of Ermelo” carefully.
Background information relating to the town of Ermelo.
Economy:
Agricultural activities such as mixed farming
including maize, cattle, potatoes, beans,
wool, pigs, sunflower seeds, nuts, sub
tropical fruits, Lucerne and sorghum take
place around the district.
Mining is important to the district with
anthracite, coal and turbinate (another type
of coal) mined in the area.
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Geo/NW
Mapwork Task
March 2023
SECTION A: MAP SKILLS
QUESTION 1: Multiple Choice
The following questions are based on the topographic map 2629DB ERMELO. Various options are
provided as possible answers to the following questions. Choose the correct answer and write only
the correct letter (A-D) in the block next to that statement.
1.1 The map reference code for Ermelo is 2629DB. The number 29 represents:
A
B
C
D
Longitude - East
Latitude - North
Latitude - South
Longitude - West
A
1.2 A natural line feature seen in Block A1 is a/an:
A
Spur
B
Perennial water
C
National Route
D
Perennial river
D
1.3 The letter F seen in Block B1 represents:
C
A reservoir
A farm name
A spot height
A row of trees
1.4 The height of the wind pump found at G in Block B3 is approximately:
A
B
C
D
D
A
B
C
D
1 700km
1 600m
1 600km
1 700m
1.5 Name the type of contour line found at G in Block B3:
D
A
B
C
D
Contour interval
Contour height
Contour benchmark
Contour Index
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Geo/NW
1.6
Mapwork Task
March 2023
The town closest to Ermelo by rail is:
B
A
B
C
D
Breyton
Camden
Chrissiesmeer
Piet Retief
1.7
The constructed feature located at 260 31’ 54” S; 290 57’ 25” E is a/an
A
A
B
C
D
Prison
Wind pump
Row of trees
Other road
1.8
A
B
C
D
How will people access the cultivated land in Block E1 from the other road
found in Block E2?
Railway Line
Road
National Route
Track
1.9
The river seen in Block B4 is a perennial river. This means it flows …
A
B
C
D
Only when it rains
During the summer season only
All year round
It no longer flows at all.
D
C
1.10 Consider the names of the suburbs seen in Blocks B4, B5 and C5. Identify the
origin of these settlers. Were they from …?
C
A
B
C
D
England
France
Holland
Germany
(10x1) (10)
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Geo/NW
Mapwork Task
March 2023
QUESTION 2: Map Calculations
The following questions are based on the topographic map 2629DB ERMELO and the
Orthophoto map 2629DB 5 ERMELO.
2.1
Look at the line scale at the bottom of the topographic map:
2.1.1 2cm on the line scale is equivalent to how many Kilometres in reality?
• 1 Km
(1x1) (1)
2.1.2 Measure the straight-line distance in kilometres, from the wind pump in Block B3 to the
wind pump in Block D4 as seen on the topographic map, using the line scale.
• 4Km
(1x2) (2)
2.2
Calculate the area of the Orthophoto map, in km2, by measuring the outline of the
Orthophoto map.
Use the formula: AREA = LENGTH (L) X BREADTH (B)
Area = (21,1cm X 0,1) X (19cm X 0,1)
Area = 2,11Km X 1,9Km
Area = 4,01Km2
Range: (21,0cm-21,2cm) X (18.9cm-19,1cm)
Range :( 2, 10Km-2,11Km) X (1,89Km-1,91Km)
Range: 3,97Km2 – 4,05Km2
(4x1) (4)
Using the topographic map:
2.3.1 Identify TWO height indicators seen in Block D2.
• Trigonometrical Station or Trig Beacon
• Bench Mark
• Contour lines
(Any TWO)
(2x1) (2)
2.3.2 Give the direction from Nederland Park in Block C5 to Wesselton seen in Block A4/B4
• North West / North North West
(1x1) (1)
(10)
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Geo/NW
Mapwork Task
March 2023
[20]
SECTION B: MAP APPLICATION AND INTERPRETATION
QUESTION 3: Refer to the topographic map.
3.1
Refer to Blocks E2 and E3
3.1.1 The primary activity seen in this mapped area is? (farming/ mining)
• Farming
(1x1) (1)
3.1.2 Give TWO examples of the produce expected to be seen in this area.
• maize, beans , meat products/pork , lucerne , potatoes , sunflowers/sunflower
seeds/ sorghum. (Any TWO examples). (2x1) (2)
3.1.3 Give TWO explanations of how the activity in 3.1.1 can contribute to
global warming.
• Increased irrigation leads to more evaporation - adds more water vapour to the
troposphere - absorbs terrestrial radiation causing increased temperatures in
troposphere.
• Fertilizers containing Nitrogen absorb T.R. increasing temperatures in
Troposphere.
• Clearing of land (natural forests and bush) for grazing means less absorption
of CO2 a greenhouse gas causing increased temps.
• Increased herds of cattle release increased volumes of methane into
atmosphere (greenhouse gas), contributes to increase global heating of
atmosphere.
• Fertilizers and pesticides can harm soil – leads to soil erosion.
(2x2) (4)
(ANY 2 EXPLANATIONS)
3.1.4 Give a reason how the relief of this area has made the primary
activity in E2 and E3 easier to carry out?
•
•
•
The slopes are gentle – easy planting and harvesting of crops
Ideal for irrigation systems
Less surface water run-off leading to greater water retention
(any ONE feasible, explained answer)
3.1.5 The general direction of the rivers flowing in Block E3 is? (north/ south)
• North
(1x2) (2)
(1x1) (1)
3.1.6 Give a reason for your answer in 3.1.5
• Dam wall is seen on North side of dam (water collecting on south side of dam
wall)
• Contour pattern – V shapes point to higher found in South
(1x2) (2)
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Geo/NW
3.2
Mapwork Task
March 2023
Use the Climate Graph below to help you answer some of the questions below
FIGURE 1: Climate graph of Ermelo
3.2.1 750 mm of rainfall is considered a good amount of rainfall for the year. Does the area of
Ermelo and surroundings receive adequate (enough) rainfall? (Yes or No)
• Yes
(1x1) (1)
3.2.2 Use the graph and map evidence to support your choice.
• Annual rainfall in Ermelo is greater than 750mm ( Ermelo around 850mm)
• Evidence of perennial rivers
• marsh and vleis seen on map
• very few wind pumps.
(ANY TWO}
(2x1) (2)
3.2.3 Ermelo has no mountains, and Frontal rainfall rarely occurs. According to your knowledge
of the 3 types of rainfall, what type of rain does this area then mainly receive?
• Convection rainfall
(1x2) (2)
3.3
Look at the opencast mine in Block A2/A3.
3.3.1 What raw material is being mined in this area?
• Coal / Anthracite / Turbinate (ANY ONE)
(1x1) (1)
3.3.2 How is this mine being supplied with the power to operate?
• Evidence of powerlines on the map
(1x1) (1)
(19)
7
Geo/NW
Mapwork Task
March 2023
QUESTION 4: Map Analysis
4.1
Look at the buildings marked 6 on the Orthophoto map.
4.1.1 What is the main function of these buildings?
• Hospital / healthcare / medical facilities
(1x2) (2)
4.1.2 Explain why this a very good place for the buildings mentioned in 4.1.1?
4.2
•
Close to suburbs / residential areas, very accessible to residents.
•
Close to transport routes along easy access from different directions.
•
Open land means there is room for expansion in the future.
(any ONE justified answer)
(1x2) (2)
Look at the recreation land in Blocks B3/4 on the Orthophoto map
4.2.1 Which sport is played within the “oval” shape?
• Cricket, /Horse racing, / Cycling, / Athletics.
(Don’t accept soccer, rugby, and hockey)
(1x1)
(1)
(5)
[24]
SECTION C: GIS AND AERIAL PHOTOGRAPHS
QUESTION 5: GIS
FIGURE 2: GIS COMPONENT SYSTEM
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Geo/NW
5.1
Mapwork Task
March 2023
Refer to the Figure 2 above which shows part of a GIS component system and how it
operates.
5.1.1 What does the abbreviation GIS stand for?
• Geographical Information Systems
(1x1) (1)
5.1.2 Give a definition/explanation of the term GIS.
• Technology used to collect, analyse, interpret, display spatial geographic
information
(1x2) (2)
5.1.3 From FIGURE 2 above and your knowledge, name any ONE hardware device that
is used for:
(a)
(b)
(c)
Capturing information into the system.
• Scanner / keyboard / person
(1x1) (1)
Storing information in the system.
• Image server / CPU / Tape backup / File server /computer
Connecting the system to a network.
• Network cable / cable / modem
(1x1) (1)
(1x1) (1)
(5)
QUESTION 6: Aerial Photographs
6.1
Look at the aerial photograph on the next page and answer the following questions:
FIGURE 3: AERIAL PHOTO TAKEN IN ERMELO (in the month of February)
Source: Commons wikipedia
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Geo/NW
Mapwork Task
March 2023
6.1.1 Identify the type of aerial photograph seen in FIGURE 3: (oblique/ vertical)
• Vertical
(1x1) (1)
6.1.2 This aerial photograph was taken by a camera with a high resolution.
What does this mean?
• The amount of detail seen, or clarity of the image is very good.
• The camera uses many pixels,
• The photograph is a high-quality image.
• The image is clear even when stretched. (any ONE concept)
(1x2) (2)
6.1.3 At what time of the day so we prefer to take aerial photographs of an area for best
light?
• Around noon
• Between 11h00 and 14h00 (ACCEPT 12h00 – 14h00)
(1x1) (1)
6.1.4 Account for your answer in 5.2.3 using evidence from the aerial photograph.
• There is lots of light, so we see a clearer image
• Fewer shadows/shadows are not long, showing it is not late afternoon
(1x2) (2)
6.1.5 “This photo could not be taken from land. It was taken using a drone.” Using
this as a clue, describe what remote sensing is.
• Collecting information about the Earth’s surface from a location/position where
there is no contact with the surface of the Earth.
(1x2) (2)
6.1.6 Give two advantages of remote sensing.
• Can obtain information or images of areas that are inaccessible or difficult to
get to.
• Does not disturb the natural habitat/environment whilst capturing images
• Can cover a great area from high above the ground
(2x1) (2)
(10)
[16]
TOTAL: 60 MARKS
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