Physics A-Level
S.I. base unit
What S.I. base unit means in Physics A-Level, as defined for OCR.
Definition of S.I. base unit
Check what you remember
Read the wording for your board, then hide it and explain S.I. base unit in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The metre (symbol m) is the S.I. base unit of length.
Topics that use S.I. base unit
- S.I. units (OCR A-Level)
Related terms
- Avogadro constant
- Base units
- Derived units
- Dimensional analysis
- Mass and the kilogram
- Molar calculations
- Prefixes and unit conversion
- S.I. base quantities
Using S.I. base unit in the exam
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