Physics A-Level
Measurement uncertainty
What Measurement uncertainty means in Physics A-Level, as defined for AQA.
Definition of Measurement uncertainty
Check what you remember
Read the wording for your board, then hide it and explain Measurement uncertainty in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
May be smaller than the size of the plotted point itself, so no error bar is drawn.
Topics that use Measurement uncertainty
- Limitation of physical measurements (AQA A-Level)
Related terms
- Absolute uncertainty
- Averaging
- Combination of absolute and percentage uncertainties
- Gradient and intercept
- Line of best fit
- Multiplication and division rule
- Percentage form
- Precision
Using Measurement uncertainty 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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