Gr12 Math Lit: Ch 5.2 Maps

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Questions and Answers

What is the primary purpose of using scales in maps and plans?

  • To interpret distances and dimensions accurately (correct)
  • To create visually appealing designs
  • To compare different maps
  • To measure the size of a map

What is the ratio of a number scale represented as 1:50?

  • 50 units on the ground represents 1 unit on the map
  • 50 units on the map represents 1 unit on the ground
  • 1 unit on the map represents 50 units on the map
  • 1 unit on the map represents 50 units on the ground (correct)

What is the first step in using a number scale to find the real distance?

  • Measure a distance on the map using a ruler (correct)
  • Multiply the measurement by the scale ratio
  • Calculate the number of segments of the bar scale
  • Divide the measurement by the scale ratio

What is the advantage of using a bar scale?

<p>It remains accurate when the map is resized (C)</p> Signup and view all the answers

What is the disadvantage of using a number scale?

<p>It becomes inaccurate if the map is resized (D)</p> Signup and view all the answers

What is the first step in drawing a scaled map from real dimensions?

<p>Obtain real measurements of the area or object (A)</p> Signup and view all the answers

What is the purpose of choosing an appropriate scale in drawing a scaled map?

<p>To suit the size of the map and the level of detail required (C)</p> Signup and view all the answers

What is the difference between a number scale and a bar scale?

<p>A number scale is expressed as a ratio, while a bar scale is graphical (A)</p> Signup and view all the answers

What is the correct way to calculate the real distance using a number scale?

<p>Multiply the measurement by the 'real' part of the scale ratio. (C)</p> Signup and view all the answers

What is the main advantage of using a number scale?

<p>It is easy to calculate distances. (A)</p> Signup and view all the answers

When would you use a bar scale instead of a number scale?

<p>When the map is resized. (A)</p> Signup and view all the answers

What is the correct way to use a bar scale to find the real distance?

<p>Measure the length of a segment and multiply it by the real-life distance. (A)</p> Signup and view all the answers

What is the primary purpose of choosing an appropriate scale when drawing a scaled map?

<p>To ensure the level of detail required is shown. (C)</p> Signup and view all the answers

What is the first step in obtaining real measurements when drawing a scaled map?

<p>Gather actual measurements of the area or object. (A)</p> Signup and view all the answers

Why would you use a number scale instead of a bar scale?

<p>When simple calculations are required. (C)</p> Signup and view all the answers

What happens to a bar scale when the map is resized?

<p>It resizes proportionally. (A)</p> Signup and view all the answers

What is the primary reason why a number scale becomes inaccurate if the map is resized?

<p>The map's proportions are no longer maintained. (B)</p> Signup and view all the answers

When would you use a number scale instead of a bar scale for mapping?

<p>When the calculations need to be simple and quick. (B)</p> Signup and view all the answers

What is the consequence of using a bar scale on a map that has been resized?

<p>The bar scale remains accurate and its complexity remains the same. (D)</p> Signup and view all the answers

What is the primary consideration when choosing an appropriate scale for a map?

<p>The level of detail required for the map. (A)</p> Signup and view all the answers

What is the advantage of using a bar scale over a number scale in terms of accuracy?

<p>Bar scales are more accurate when the map is resized. (D)</p> Signup and view all the answers

What is the primary purpose of a bar scale on a map?

<p>To enable accurate measurements even when the map is resized. (B)</p> Signup and view all the answers

What is the consequence of using a number scale on a map that has been resized?

<p>The number scale becomes inaccurate. (D)</p> Signup and view all the answers

What is the primary reason why a bar scale is more complex to use than a number scale?

<p>It requires measuring the length of a segment and calculating the number of segments. (A)</p> Signup and view all the answers

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