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).
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
Using the formula Area = Length x Breadth:
Area = 2.1 km × 1.9 km = 3.99 km².
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 area appears smaller because the scale of the topographic map is larger than that of the orthophoto map, making features appear more compact.
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
To calculate the average gradient, use the formula:
Average Gradient = vertical interval (VI) / horizontal equivalent (HE).
Here, VI = 50 m and HE = 540 m, thus:
Average Gradient = 50 m / 540 m = 1/10.8, which can be expressed 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 approximately 1:10.8 is generally considered to be steep.
