What is the main reason that astronomers (and other scientists) almost always use the Kelvin (absolute) temperature scale rather than the Celsius or Fahrenheit scales?
A) The scale has a physically meaningful absolute zero of temperature.
B) The temperatures of freezing and boiling water are easier to remember.
C) Calculations are easier on the Kelvin scale.
D) The size of each degree (or unit) of temperature is more convenient.

Question

Quizplus · Accepted Answer

The Kelvin scale has an absolute zero, which is the point at which particles have minimal thermal motion, making it a fundamental scale for scientific measurements. This is crucial for many scientific calculations, especially in physics and astronomy, where understanding the behavior of matter at extremely low temperatures is essential.

What Is the Main Reason That Astronomers (And Other Scientists)