Skills for every paper

IB Physics Measurement and uncertainties: practice questions and video explanations

The data-handling skills tested across every paper, and especially in Paper 1B: recording measurements with the right precision, propagating uncertainties and reading uncertainty from graphs.

SL and HLFree to practise

What you need to know for Measurement and uncertainties

  • Distinguish random and systematic errors, and precision from accuracy
  • Express absolute, fractional and percentage uncertainties
  • Propagate uncertainties through sums, products, quotients and powers
  • Draw error bars and find the uncertainty in a gradient or intercept
  • Use significant figures and SI units consistently

Measurement and uncertainties questions in the question bank

Exam-style questions
19
Multiple choice (Paper 1A style)
12
Structured (Paper 1B and 2 style)
7
Free to try
17

Every question has a mark scheme. Multiple-choice answers are marked instantly, and for structured questions you open the mark scheme part by part and award yourself the marks you earned. Most questions also have a step-by-step video explanation presented by an IB teacher or a former IB student.

Practise 1 (SL)Practise 1 (HL)

Try a free Measurement and uncertainties question

Real questions from the question bank. Choose an answer and check it, then see the mark scheme and the video explanation.

Free question · 1 of 5Topic 1Paper 1 styleEasy
Which of the following is a derived unit?
Choose your answer

Full practice papers

When you have practised by topic, sit a full SL or HL mock exam with Paper 1A, Paper 1B and Paper 2, or see every IB Physics topic.