scale factor
scale factor
scale factor
scale drawing
scale factor
scale factor
scale factor
scale factor
scale drawing
scale factor
scale factor
scale factor
scale drawing An example might be 4:1 This is a ratio in its simplest form (it cannot be further simplified mathematically) and it's expressed with no units (not in inches or milimeters etc).
1in 5ft
Not necessarily. Most maps will have scales written with units. Map scales in the Imperial system are sometimes written as 2 inches = 1 mile, for example. This could be simplified to 1:31680. In the simplest form, this is 1 inch = 31680 inches but that would not be particularly meaningful to most users. Similarly, in the metric system, scales may be written as 4 cm = 1 km rather than 1:25000. In the simplest form this is 1 cm = 25000 cm. Again, not particularly user friendly.
the verbal
The scale gives the ratio that compares the measurements of the drawing or model to the measurements of the real object. Scale factor is a scale written as a ratio without units in simplest from.