Advanced Higher Physics

Units, prefixes and scientific notation

 

Scholar Notes on Units, prefixes and uncertainties - pdf file

Mandatory knowledge

Appropriate use of units, including electronvolt (eV), light-year (ly) and astronomical unit (AU).

Use of SI units with all physical quantities, where appropriate.

Use of prefixes where appropriate. These include femto (f), pico (p), nano (n), micro (μ), milli (m), kilo (k), mega (M), giga (G), tera (T), and peta (P)

Use of the appropriate number of significant figures in final answers. The final answer can have no more significant figures than the data with fewest number of significant figures used in the calculation.

Appropriate use of scientific notation.