Question

What is the difference between fundamental and basic physical quantities?

Answer 1

The fundamental (basic) physical quantities are these that is chosen by convention and can’t be resolved further. For example, the SI system defines seven basic physical quantities: length, mass, time, electric current, thermodynamic temperature, amount of substance and luminous intensity. Derived physical quantities are these that can be expressed in terms of fundamental physical quantities. For example, velocity, acceleration, force.