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 = \frac{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 Application of theory to a topographic map and an orthophoto: 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 3322CD is located ... of Mossel Bay on the index sheet.

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Answer

The correct answer is C (north-east).

Step 2

3.1.2 The value of the index contour line F in block C2 on the topographic map is ... metres.

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Answer

The correct answer is B (100 metres).

Step 3

3.1.3 Calculate, in km², the area covered by the orthophoto map using the following converted measurements:

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Answer

To find the area, use the formula:

Area = Length \times Breadth = 2.1\, \text{km} \times 1.9\, \text{km} = 3.99\, \text{km}^2

Step 4

3.1.4 Why does the demarcated area of the orthophoto map appear smaller on the topographic map?

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Answer

The demarcated area appears smaller due to differences in scale. The orthophoto map may represent areas at a smaller scale, causing objects to appear reduced in size compared to their actual dimensions.

Step 5

3.1.5 Calculate the average gradient from 6 in block B3 to 7 in block B4 on the orthophoto map.

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Answer

The average gradient is calculated using the formula:

Average\ gradient = \frac{\text{vertical interval (VI)}}{\text{horizontal equivalent (HE)}}

Given VI = 50 m and HE = 540 m,

Average\ gradient = \frac{50}{540} \approx 0.0926

Thus, the average gradient can be further interpreted as approximately 1:10.8.

Step 6

3.1.6 Is the average gradient calculated in QUESTION 3.1.5 generally considered steep or gentle?

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Answer

The average gradient of 1:10.8 is generally considered steep, indicating a significant rise over a relatively short horizontal distance.

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 3322CD is located ... of Mossel Bay on the index sheet.

3.1.2 The value of the index contour line F in block C2 on the topographic map is ... metres.

3.1.3 Calculate, in km², the area covered by the orthophoto map using the following converted measurements:

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.

3.1.6 Is the average gradient calculated in QUESTION 3.1.5 generally considered steep or gentle?

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