Combined Science GCSE
Measurement and uncertainty
What Measurement and uncertainty means in Combined Science GCSE, as defined for AQA.
Definition of Measurement and uncertainty
Check what you remember
Read the wording for your board, then hide it and explain Measurement and uncertainty in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Whenever a measurement is made there is always some uncertainty about the result obtained, an unavoidable doubt about the true value rather than a mistake.
Topics that use Measurement and uncertainty
- Chemical measurements (AQA GCSE)
Related terms
- Distribution
- Instrument resolution and precision
- Mean
- Precision and repeatability of measurements
- Random and systematic error
- Range as a measure of spread
- Evaluating experimental data
- Range
Using Measurement and 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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