Physics A-Level
Zero errors
What Zero errors means in Physics A-Level, as defined for OCR.
Definition of Zero errors
Check what you remember
Read the wording for your board, then hide it and explain Zero errors in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
A systematic error where an instrument does not read zero when it should, such as a top-pan balance reading 0.02 g with nothing on it.
Topics that use Zero errors
- 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
- Accuracy
Using Zero errors 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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