Question

State the laws for writing SI units.

Answer 1

Laws for writing SI units:

1. The name of the unit should be written in small letters even if it is after the name of the scientist.
2. Symbols are generally written in small letters, for example, metre (m).
3. But the symbol of units named after scientists is written in capital letters, for example, newton (N).
4. Symbols for derived units which are obtained by multiplication of two units are written with space, for example, newton second as N s.
5. Symbols for derived units which are obtained by division of two units are written with solidus (/) or as negative exponent, for example, metre per second as m/s or m s^-1.
6. Name of the unit may be written in plural form but the symbol is always written in singular form.
7. Symbols do not end with a full stop unless they are at the end of the sentence.