Units, prefixes and scientific notation
Skills you need to develop:
Skills you need to develop:
Appropriate use of units and prefixes
SI units should be used with all physical quantities, where appropriate. Prefixes should be used where appropriate. These include pico (p), nano (n), micro (μ), milli (m), kilo (k), mega (M), giga (G) and tera (T).
Use of the appropriate number of significant figures in final answers. This means that the final answer can have no more significant figures than the value with least number of significant figures used in the calculation.
Appropriate use of scientific notation.