Physics A-Level
Length and the metre
What Length and the metre means in Physics A-Level, as defined for OCR.
Definition of Length and the metre
Check what you remember
Read the wording for your board, then hide it and explain Length and the metre in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Length is an S.I. base quantity whose base unit remains the metre even when prefixes scale it.
Topics that use Length and the metre
- 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 Length and the metre 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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