3.1.1 3322CD is located ... of Mossel Bay on the index sheet. A south-east B north-west C north-east D south-west 3.1.2 The value of the index contour line F in block C2 on the topographic map is ... metres. A 80 B 100 C 120 3.1.3 Calculate, in km², the area covered by the orthophoto map using the following converted measurements: Length: 2,1 km Breadth: 1,9 km Formula: Area = Length x Breadth 3.1.4 Why does the demarcated area of the orthophoto map appear smaller on the topographic map? 3.1.5 Calculate the average gradient from 6 in block B3 to 7 in block B4 on the orthophoto map. Formula: Average gradient = vertical interval (VI) / horizontal equivalent (HE) 3.1.6 Is the average gradient calculated in QUESTION 3.1.5 generally considered steep or gentle?

NSC Geography Mapwork calculations: 3.1.1 3322CD is located ... of M

3.1.1 3322CD is located .. - NSC Geography - Question 3 - 2022 - Paper 1

Question 3

3.1.1 3322CD is located ... of Mossel Bay on the index sheet. A south-east B north-west C north-east D south-west 3.1.2 The value of the index contour line F in bl... show full transcript

Worked Solution & Example Answer:3.1.1 3322CD is located .. - NSC Geography - Question 3 - 2022 - Paper 1

Step 1

3.1.1 Identify the location of 3322CD

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Answer

The correct answer is C, indicating that 3322CD is located in the north-east direction of Mossel Bay on the index sheet.

Step 2

3.1.2 Determine the value of the index contour line F

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Answer

The value of the index contour line F in block C2 is B, which is 100 metres.

Step 3

3.1.3 Calculate the area covered by the orthophoto map

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Answer

To find the area, apply the formula:

ext{Area} = ext{Length} imes ext{Breadth} = 2.1 ext{ km} imes 1.9 ext{ km} = 3.99 ext{ km}^2

Step 4

3.1.4 Explain why the area appears smaller on the topographic map

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Answer

The demarcated area of the orthophoto map appears smaller on the topographic map due to the differences in scale, where the topographic map is at a smaller scale compared to the orthophoto.

Step 5

3.1.5 Calculate the average gradient

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Answer

First, find the vertical interval (VI) and the horizontal equivalent (HE).

Assuming VI = 50 m and HE = 540 m,

Apply the formula:

ext{Average Gradient} = rac{ ext{VI}}{ ext{HE}} = rac{50 ext{ m}}{540 ext{ m}} = rac{1}{10.8}

This gives an average gradient of approximately 1:10.8.

Step 6

3.1.6 Determine if the average gradient is steep or gentle

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Answer

The average gradient calculated is steep, as a gradient of 1:10.8 indicates a steep slope.

3.1.1 3322CD is located .. - NSC Geography - Question 3 - 2022 - Paper 1

Worked Solution & Example Answer:3.1.1 3322CD is located .. - NSC Geography - Question 3 - 2022 - Paper 1

3.1.1 Identify the location of 3322CD

3.1.2 Determine the value of the index contour line F

3.1.3 Calculate the area covered by the orthophoto map

3.1.4 Explain why the area appears smaller on the topographic map

3.1.5 Calculate the average gradient

3.1.6 Determine if the average gradient is steep or gentle

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