Chemistry GCSE
Measurement and uncertainty
What Measurement and uncertainty means in Chemistry 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, which is the range of values within which the true value is likely to lie.
Topics that use Measurement and uncertainty
- Chemical measurements (AQA GCSE)
Related terms
- Distribution of results
- Instrument resolution
- Mean and range
- Precision of measurements
- Estimating uncertainty
- Repeat measurements
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.
Practise Chemistry questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Chemistry GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge