Measurement

Difference between scalar and vector

Every scientific explanation is realized with the aid of a number of physical quantities — each expresses a special meaning and significance in that context. By definition, a physical quantity is measurable and quantifiable physical property that carries unique information with it. Based on the dependency nature, such quantities can be of two types — fundamental and derived. A fundamental quantity is one that is independent of other properties; while,

Difference between fundamental unit and derived unit

Every physical “matter” intrinsically consists of one or more “properties” (such as mass, weight, length, velocity, temperature, current, etc.). By definition, every property of a matter is measurable and quantifiable. Measurement of a property can be carried out with suitable instrument. However, to quantify the measured result, a “magnitude” along with its “unit” is required to present. By definition, a unit of measurement indicates “a standardized and well-defined magnitude of