Question

what are fundamental physical quantities, derived physical quantities

and what is the third type of physical quantities, explain about them too

Answer 1

fundamental or base quantities : these are treated as independent of other physical quantities and are not usually defined in terms of other physical quantities..the units for these quantities are called fundamental or base units..there are seven base quantities..these are length,mass,time, electric current, temperature,luminous intensity and amount of substance.

(2).derived quantities : all physical quantities whose units can be expressed as combination of base units are called derived physical quantities...
example : velocity,acceleration,momentum etc..units of these quantities are called derived units...

there are supplementary quantities also...which are plane angle and solid angle whose SI units are radian and steradian..

I hope this will help u ;)

PLZZ mark it as the BRAINLIEST plzz

Answer 2

Fundamental physical quantities are base unit.
In SI there are seven base units..... example
1.length(M)
2.mass(kg)
3.time(s)
4. luminous intensity(cd)
5. electric current(A)
6. amount of substance (mol)
7. temperature(K)

we use these as a base to form derived units..so derived units are those which is formed using fundamental physical quantities
example..
unit of speed = unit of distance/unit of time
=M/s
other examples like force,frequency etc

There are 5 types of physical quantities
1. Fundamental
2. Derived
3. Supplementary units: In SI system 2 supplementary units are also defined viz. radian for plane angle and steradian for solid angle
4. Practical units: light year ,horse power....is the example of it
5. Improper units:Those who are not of the same nature as that of the physical quantities for which they are used.... example→kg-wt