Absolute uncertainty
What Absolute uncertainty means in Physics A-Level, as defined for AQA.
Definitions of Absolute uncertainty
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Reference: AQA
The value added to and subtracted from a plotted value to give the upper and lower limits of a bar.
Expressed in the same unit as the measured quantity, for example ±0.001 m for a length of 0.842 m.
Topics that use Absolute uncertainty
- Limitation of physical measurements (AQA A-Level)
Related terms
- Averaging
- Combination of absolute and percentage uncertainties
- Gradient and intercept
- Line of best fit
- Multiplication and division rule
- Percentage form
- Precision
- Random errors
Using Absolute uncertainty in the exam
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