Important Concepts About Uncertainty


  • Systematic Error - errors resulting from measuring devices being out of calibration. Such measurements will be consistently too small or too large. These errors can be eliminated by pre-calibrating against a known, trusted standard.
  • Random Errors - errors resulting in the fluctuation of measurements of the same quantity about the average. The measurements are equally probable of being too large or too small. These errors generally result from the fineness of scale division of a measuring device. 
  • Precision:Precision refers to the closeness of two or more measurements to each other
  • Accuracy: Accuracy is how close the actual value is to the true/theoretical value.

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Uncertainty Calculation

Lecture For Uncertainty and Error


Additional Formula for HL Students


Practice Problems


Worksheets For Revision Of Topic 1 2
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IB Diploma Cambridge University Press
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Oxfordphysics 2014 Allfixed Dragged
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Multiple Choice Question (Paper 1, IB Questionbank)


Paper 1, 1-20
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Paper 1, 1-20
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Paper 1 Answer, 1-20
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Unit And Measurement Paper 1 Answer 1 20
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Uncertainty And Error Paper 1 Part 2
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Uncertainty And Error Paper 1 Answer Part 2
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Uncertainty And Error Paper 1 Answer Part 2
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Uncertainty And Error Paper 1 Part 3
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Uncertainty And Error Paper 1 Answer Part 3
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Multiple Choice Question (Paper 2, IB Questionbank)


Uncertainty And Error Paper 2
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Uncertainty Calculation Problems


Uncertainty Calculation Problem
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Uncertainty Calculation Problem
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More Uncertainty Data Analysis Problems


Uncertainty Data Analysis Problems
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