Question

The quantity specifying the flow or motion is termed as _________

(a) Density

(b) Flux

(c) Field

(d) Electrostatic force

I had been asked this question in a job interview.

This intriguing question originated from Continuity Equation topic in chapter Aerodynamics – Fundamental Principles and Equations of Aerodynamics

Answer 1

Correct choice is (b) Flux

To elaborate: Flux is also referred to as flux density. It is the amount of quantity (q) which is flowing per unit volume(v). The quantity should have the ability to move or flow.