Physics A-Level
Unit conversion and prefixes
What Unit conversion and prefixes means in Physics A-Level, as defined for AQA.
Definition of Unit conversion and prefixes
Check what you remember
Read the wording for your board, then hide it and explain Unit conversion and prefixes in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Prefixed values are converted to base units before substituting, such as 25 cm to 0.25 m or 2.5 kJ to 2500 J.
Topics that use Unit conversion and prefixes
- Use of SI units and their prefixes (AQA A-Level)
Related terms
- Base units
- Dimensional analysis
- S.I. base quantities
- SI prefixes
- Standard form
- Unit conversion
- Coherent SI units in calculation
- Defining equation
Using Unit conversion and prefixes in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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