Topic 4 Scale Drawings

Question 1

What is a scale drawing?

Answer 1

A representation of an object or area where the dimensions are proportional to the actual measurements.

Question 2

True or False: Scale drawings can only be made in 2D.

Answer 2

False

Question 3

If a scale drawing has a scale of 1:100, how many units on the drawing represent 1 unit in reality?

Answer 3

100 units

Question 4

What is the formula to calculate the area of a shape on a scale drawing?

Answer 4

Area on drawing = Area in reality / (scale factor)^2

Question 5

Fill in the blank: A scale of 1:50 means that 1 cm on the drawing represents _____ cm in reality.

Answer 5

50 cm

Question 6

What is the purpose of using scale drawings?

Answer 6

To represent large objects or areas in a manageable size while maintaining proportional relationships.

Question 7

In a scale drawing, what does a scale of 1:1 mean?

Answer 7

The drawing is the same size as the actual object.

Question 8

True or False: A scale drawing can distort shapes.

Answer 8

False, it maintains the proportions of the shapes.

Question 9

If a rectangle in reality measures 200 cm by 100 cm, what would its dimensions be on a scale drawing with a scale of 1:20?

Answer 9

10 cm by 5 cm

Question 10

What is the scale factor in a scale drawing of 1:25?

Answer 10

25

Question 11

How can you determine the actual distance from a scale drawing?

Answer 11

Multiply the distance on the drawing by the scale factor.

Question 12

Fill in the blank: A scale drawing with a scale of 1:10 means that 1 inch on the drawing represents _____ inches in reality.

Answer 12

10 inches

Question 13

What is the difference between a scale drawing and a map?

Answer 13

A map is a type of scale drawing specifically for geographic areas.

Question 14

True or False: Scale drawings can only be used for architectural designs.

Answer 14

False

Question 15

What is the first step in creating a scale drawing?

Answer 15

Determine the scale to be used.

Question 16

If a triangle’s sides measure 12 cm, 16 cm, and 20 cm in reality, what would they measure on a scale drawing with a scale of 1:4?

Answer 16

3 cm, 4 cm, and 5 cm

Question 17

What are the common scales used in scale drawings?

Answer 17

1:50, 1:100, 1:200, 1:500

Question 18

Fill in the blank: A scale drawing helps visualize _____ and relationships of sizes.

Answer 18

proportions

Question 19

What is the significance of the scale in a scale drawing?

Answer 19

It indicates the ratio of the drawing’s size to the actual size.

Question 20

How do you convert measurements from a scale drawing back to actual measurements?

Answer 20

Divide the drawing measurements by the scale factor.

Question 21

If a drawing is made to a scale of 1:200, how would you express this scale?

Answer 21

1 cm on the drawing represents 200 cm in reality.

Question 22

True or False: Larger scale factors indicate smaller objects in scale drawings.

Answer 22

True

Question 23

What type of scale is used when the scale is expressed as a ratio?

Answer 23

Ratio scale

Question 24

What is an example of a practical application of scale drawings?

Answer 24

Architectural blueprints or engineering designs.

Question 25

If a scale drawing shows a length of 5 cm, and the scale is 1:50, what is the actual length?

Answer 25

250 cm

Question 26

Fill in the blank: A scale drawing allows for _____ and analysis of dimensions without needing the actual object.

Answer 26

planning

Question 27

What is the main advantage of using scale drawings?

Answer 27

They simplify the representation of large objects and distances.

Question 28

How does changing the scale affect a scale drawing?

Answer 28

It alters the size of the drawing while keeping proportions the same.

Question 29

What is a common mistake to avoid when working with scale drawings?

Answer 29

Misinterpreting the scale and calculating incorrect dimensions.