physical quantity
Technical term in physics and engineering for a measurable property such as length, mass, time, or temperature.
Length and mass are fundamental physical quantities.
In this formula, please perform the calculation by attaching units to each physical quantity.
量 is a general term for 'quantity' or 'amount'; 物理量 narrows it to physical quantities.
Compound of 物理 (physics) and 量 (quantity). A straightforward modern technical term.