Scale Factor

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity. It is used to determine the size of a scaled object compared to the original.

Front

If the scale factor is greater than one, what happens to the new figure?

Back

The new figure will be an enlargement.

Front

What does a scale factor of less than one indicate?

Back

A scale factor of less than one indicates a reduction in size.

Front

How do you calculate the actual distance using a scale?

Back

Multiply the distance on the map by the scale factor.

Front

If a map scale is 1 inch = 40 miles, how far is 4.125 inches on the map in actual miles?

Back

82.5 miles.

Front

What is the scale of a drawing if a soccer field is 14 inches long in the drawing and the actual field is 98 yards long?

Back

1 inch = 7 yards.

Front

How tall should a scale drawing be if the actual height is 300 ft and the scale is 1 inch : 10 ft?

Back

30 inches.

Front

What is an enlargement in terms of scale drawings?

Back

An enlargement is when a scale drawing is larger than the original object.

Front

What is a reduction in terms of scale drawings?

Back

A reduction is when a scale drawing is smaller than the original object.

Front

What is the purpose of using a scale factor in drawings?

Back

The purpose is to create a proportional representation of an object that can be larger or smaller than the original.