Question detail
When using a 1:25,000 OS map, how would you determine the distance between two points using a ruler? Describe the steps involved.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Cartographic skills
Question
When using a 1:25,000 OS map, how would you determine the distance between two points using a ruler? Describe the steps involved.
Answer
To determine the distance between two points on a 1:25,000 OS map using a ruler, first measure the distance between the points in centimeters. Then, multiply this measurement by 25,000 to convert it to the actual distance in centimeters on the ground. Finally, if needed, convert this distance to kilometers by dividing by 100,000.
Explanation
This question assesses the student's ability to apply their knowledge of map scales to calculate real-world distances. It requires understanding of measurement and conversion processes, demonstrating practical skills in using maps.
Common mistake
Misunderstanding OS Map Scales
Students often confuse the scale of OS maps, thinking that a 1:50,000 scale means the map is larger than a 1:25,000 scale.
Remember that a smaller denominator in the scale (like 1:25,000) means a larger area is represented in the same space, making it more detailed than a 1:50,000 scale.
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