Gr12 Math Lit: Ch 5.2 Maps

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?

It remains accurate when the map is resized Signup and view all the answers

What is the disadvantage of using a number scale?

It becomes inaccurate if the map is resized Signup and view all the answers

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

Obtain real measurements of the area or object Signup and view all the answers

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

To suit the size of the map and the level of detail required Signup and view all the answers

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

A number scale is expressed as a ratio, while a bar scale is graphical Signup and view all the answers

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

Multiply the measurement by the 'real' part of the scale ratio. Signup and view all the answers

What is the main advantage of using a number scale?

It is easy to calculate distances. Signup and view all the answers

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

When the map is resized. Signup and view all the answers

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

Measure the length of a segment and multiply it by the real-life distance. Signup and view all the answers

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

To ensure the level of detail required is shown. Signup and view all the answers

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

Gather actual measurements of the area or object. Signup and view all the answers

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

When simple calculations are required. Signup and view all the answers

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

It resizes proportionally. Signup and view all the answers

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

The map's proportions are no longer maintained. Signup and view all the answers

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

When the calculations need to be simple and quick. Signup and view all the answers

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

The bar scale remains accurate and its complexity remains the same. Signup and view all the answers

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

The level of detail required for the map. Signup and view all the answers

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

Bar scales are more accurate when the map is resized. Signup and view all the answers

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

To enable accurate measurements even when the map is resized. Signup and view all the answers

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

The number scale becomes inaccurate. Signup and view all the answers

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

It requires measuring the length of a segment and calculating the number of segments. Signup and view all the answers