Physics A-Level
Time and the second
What Time and the second means in Physics A-Level, as defined for OCR.
Definition of Time and the second
Check what you remember
Read the wording for your board, then hide it and explain Time and the second in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Time is an S.I. base quantity with the base unit second (s), which for A Level you simply treat as the base unit of time.
Topics that use Time and the second
- 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 Time and the second 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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