Lines of best fit
What Lines of best fit means in Physics A-Level, as defined for AQA.
Definition of Lines of best fit
Check what you remember
Read the wording for your board, then hide it and explain Lines of best fit in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A line drawn through the data taking account of error bars, from which the gradient and intercept are found.
Topics that use Lines of best fit
- 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 Lines of best fit 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 Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge