Physics A-Level
Percentage difference
What Percentage difference means in Physics A-Level, as defined for OCR.
Definition of Percentage difference
Check what you remember
Read the wording for your board, then hide it and explain Percentage difference in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
A comparison of an experimental value with an accepted value: difference ÷ accepted value × 100.
Topics that use Percentage difference
- Measurements and uncertainties (OCR A-Level)
Related terms
- Absolute and percentage uncertainties
- Averaging
- Graphical representation of uncertainty
- Line of best fit and worst line
- Precision
- Random errors
- Systematic errors
- Zero errors
Using Percentage difference 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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