Physics A-Level
Error bars
What Error bars means in Physics A-Level, as defined for AQA.
Definition of Error bars
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Reference: AQA
Bars drawn on a graph to show the uncertainty attached to each plotted value, centred on the plotted point.
Topics that use Error bars
- 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 Error bars in the exam
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