Final answer:
In physics, measurements such as width, breadth, height, diameter, depth, and distance are all considered lengths because they are dimensions measured along the greatest extent of an object or distance using standardized units like meters.
Step-by-step explanation:
The measurements like width, breadth, height, diameter, depth, distance, etc. are considered as lengths in physics as they measure the extent of something along its greatest dimension. The SI basic unit of length, or linear measure, is the meter (m). Standardized units such as meters, kilometers, millimeters, and micrometers, help scientists express and compare measured values in a meaningful way.
For example, the width of a room may be about 5 meters, whereas the distance between two cities might be better expressed in kilometers. Very small distances, like the width of a human hair, can be expressed in micrometers.