Scalar

Scalar

The physical quantity which has only magnitude but no direction is called scalar quantity or scalars. Mass, length, time, distance covered, speed, temperature, work, etc. are few examples of scalar quantity. The scalars can be added, subtracted, multiplied and divided by ordinary laws of algebra. The scalar is specified by mere number and unit, where number represents its magnitude. A scalar may be positive or negative. A scalar can be represented by a single letter.