In physics, we have studied a lot about physical quantities like work, time, displacement, force, etc. which can be broadly classified into two categories: (1) scalar quantities
(2) vector quantities
Physical quantities which have magnitude only. Example; mass, speed, volume, work, time, power, energy, etc. are SCALAR QUANTITIES.
Physical quantities which have magnitude and direction both, e.g. , displacement, velocity, acceleration, force, momentum, torque, etc.
A quantity will say to be a vector if it follows the triangle rule of addition of two vectors.
And also their a quantity called tensor quantities like; moment of inertia, pressure, refractive index,stress.