IB Physics SL

Assessment combines external papers covering the core syllabus, including multiple-choice, short-answer, data-based and extended-response questions, plus an internally assessed practical investigation marked by your teacher and moderated externally. The IB publishes the current component weightings and durations, so confirm them on the official site rather than relying on second-hand summaries.

The concepts are accessible, but the marks come from precision: significant figures, units, uncertainty treatment and structured explanations. Students strong in algebra usually cope; those uncomfortable with rearranging equations and interpreting gradients find it harder. Consistent weekly practice beats last-minute cramming, especially on mechanics and electricity.

No. SL physics assumes algebra, trigonometry, ratios and graph work rather than calculus. Being comfortable with standard-form notation, unit conversion and rearranging formulas is more useful. If you plan to study engineering or physics at university, check whether the programme you are applying to expects Physics HL.

Retake arrangements depend on your school and the IB's rules for the session in which you register, including whether you resit individual components or the whole subject. Policies and deadlines vary, so ask your DP coordinator and consult the IB's official site for the current regulations instead of assuming a fixed window.

The IB sets and periodically revises paper durations, mark totals and grade boundaries. Because these change between sessions, this page does not quote them. Your school's assessment calendar and the official IB documentation for your examination session are the authoritative sources.

Follow the syllabus sequence initially, because measurement and uncertainty underpin every later practical question. Then prioritise mechanics and electricity, which carry the most weight and supply the algebra used elsewhere. Waves and thermal physics reward diagram practice. Leave energy production and atomic physics until your core skills are solid, then revise by mixed-topic papers.

Dropping units or using inconsistent significant figures, quoting a formula without substituting values, describing a trend instead of explaining the physics, and misreading gradients or intercepts on graphs. In extended responses, candidates often answer the command term loosely, for example describing when asked to evaluate. Practise identifying the command term before writing.

It is a substantial part of your final grade and is marked in school, so it is the most controllable component. Choose a question you can measure reliably, justify your method, and treat uncertainty analysis as central rather than decorative. A modest, well-analysed experiment scores better than an ambitious one with poor data.

The International Baccalaureate publishes current examination schedules, registration procedures, fees and results statistics on its official website, and your school's DP coordinator handles registration. Consult those sources for anything numeric; this page deliberately avoids quoting figures that change between sessions.