Question

Q2. classify the following quantities into fondamental and
derived quantities.
[Velocity, acceleration, length, force, density, moss,
volume, electric current, voltage, time, kinetic energy,
momentum.]​

Answer 1

Answer:

Base quantity Symbol Description SI base unit Dimension Comments

Length l The one-dimensional extent of an object metre (m) L extensive

Mass m A measure of resistance to acceleration kilogram (kg) M extensive, scalar

Time t The duration of an event second (s) T scalar

Electric Current I Rate of flow of electrical charge per unit time ampere (A) I extensive

Temperature T Average kinetic energy per degree of freedom of a system kelvin (K) Θ intensive, scalar

Amount of substance n The quantity proportional to the number of particles in a sample, with the Avogadro constant as the proportionality constant mole (mol) N extensive, scalar

Luminous intensity Iv Wavelength-weighted power of emitted light per unit solid angle