Question

what are scalar and vector quantities

Answer 1

A scalar is fully defined by a numerical value only, like temperature, energy, density, charge. A vector is characterized by both a numerical value, ie its magnitude, and a direction, eg. velocity, force, momentum, etc

Answer 2

A scalar has only a magnitude while a vector has both a magnitude and direction. For example, speed is a scalar because it only has a magnitude (e.g 14 km/h). On the other hand if we add a direction to the speed (e.g 14 km/h [north]), that suddenly becomes a velocity (vector quantity).

Answer 3

thnx