What is a physical quantity? Write its types.

(N/A) physical quantity is a property of a material or system that can be quantified by measurement. It is expressed as the product of a numerical value and a unit.
There are two main types of physical quantities:
$(1)$ Fundamental quantities: These are the basic physical quantities that are independent of each other and cannot be defined in terms of other physical quantities. Examples include length,mass,time,electric current,temperature,amount of substance,and luminous intensity.
$(2)$ Derived quantities: These are physical quantities that are expressed in terms of fundamental quantities. They are obtained by multiplying or dividing fundamental quantities. Examples include velocity,acceleration,force,work,and power.