Question

State two characteristics of a unit?

Answer 1

Unit:

1. Any given physical quantity is measured in comparison to a basic unit that is arbitrarily chosen, and internationally accepted.
2. The result of a measurement is expressed by a number which is accompanied by a unit.

Characteristics of units:

1. It must be easily accessible.
2. It must be accurate.
3. It must be accepted internationally / Worldwide
4. It must be invariant.