What is a characteristic of a linear scale?

A linear scale is defined by its property of having equal divisions that represent equal values. This means that the distance between any two points on the scale corresponds directly to the difference in the values they represent. For instance, on a linear scale measuring temperature, the difference between 20°C and 30°C would be the same as the difference between 50°C and 60°C, showing that the increments are consistent throughout the scale.

This characteristic is fundamentally what differentiates a linear scale from other types such as nonlinear scales, where distances can represent varying values rather than constant changes. Additionally, unlike some other scales that might use an unlimited number of units or employ exponential values (as seen in scales that use powers of ten), a linear scale maintains a straightforward and direct relationship between measurement intervals. Thus, the clarity and simplicity of equal divisions making equal increments are key traits that define a linear scale.