Line of best fit and worst line
What Line of best fit and worst line means in Physics A-Level, as defined for OCR.
Definition of Line of best fit and worst line
Check what you remember
Read the wording for your board, then hide it and explain Line of best fit and worst line in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The line of best fit balances points above and below it, while a worst line is the steepest or shallowest line that still passes through every error bar.
Topics that use Line of best fit and worst line
- Measurements and uncertainties (OCR A-Level)
Related terms
- Absolute and percentage uncertainties
- Averaging
- Graphical representation of uncertainty
- Precision
- Random errors
- Systematic errors
- Zero errors
- Accuracy
Using Line of best fit and worst line 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