The IB Physics exam tips that move grades most reliably are not clever shortcuts. They are interpreting command terms accurately, showing structured working, controlling time by marks, and reviewing uncertain answers deliberately. Each skill improves fastest when you attempt a question first and then study a complete solution step by step.
This advice applies to the current IB Physics course, first assessed in 2025. According to the official IB Physics subject brief, external examinations contribute 80% of the final subject result, so small improvements in examination technique can materially affect your grade.
Know the examination you are preparing for
The current course has two external papers. Paper 1 contains Paper 1A, consisting of multiple-choice questions, and Paper 1B, consisting of data-based questions. Paper 2 contains short-answer and extended-response questions.
| Component | SL duration | HL duration | Final weighting | Main demands |
|---|---|---|---|---|
| Paper 1A and 1B | 1 hour 30 minutes | 2 hours | 36% | Multiple choice, data analysis, graphs, units and uncertainties |
| Paper 2 | 1 hour 30 minutes | 2 hours 30 minutes | 44% | Short-answer and extended-response problem solving |
| Scientific investigation | Recommended 10 teaching hours | Recommended 10 teaching hours | 20% | Independent investigation and individual report |
The official IB Physics specimen papers are particularly useful because they show the current paper structure, instructions and markscheme style. They also confirm that a calculator and a clean physics data booklet are required for the specimen examinations. Follow your coordinator's current instructions on approved calculator models and examination mode.
Do not prepare using advice written exclusively for the previous syllabus. The current assessment has no Paper 3 and no separate option-topic examination. Use the RevisionDojo IB Physics subject hub to keep practice aligned with the current course.
Tip 1: Translate the command term before answering
A command term identifies the kind and depth of response required. Knowing the topic is not enough if your answer performs the wrong task.
| Command term | What the IB expects | Practical response |
|---|---|---|
| State | A specific name, value or brief answer | Answer directly without unnecessary explanation |
| Calculate | A numerical answer with relevant stages shown | Write the relationship, substitution, result and unit |
| Describe | A detailed account | Say what happens or identify the relevant pattern |
| Explain | A detailed account including reasons or causes | Connect observation, physical principle and consequence |
| Discuss | A considered, balanced review | Address relevant factors and support a clear conclusion |
| Show | Steps in a calculation or derivation | Develop the result logically rather than quoting it |
| Sketch | The general form with important features | Label axes and show intercepts, gradients or asymptotes where relevant |
For example, suppose a graph shows that resistance increases with temperature. A describe question may require the trend and relevant graph features. An explain question requires the mechanism, such as increased lattice vibrations producing more frequent interactions with charge carriers in a metal.
Before writing, circle or mentally translate the command term: “Explain means give the result and the physical reason.” Use the mark allocation as a second clue. A three-mark explanation normally needs more than one unsupported statement, although marks do not always correspond mechanically to sentences.
After attempting a question, compare your response with a worked solution. Do not merely check whether the final idea matches. Identify the exact sentence where the solution changes from describing an effect to explaining its cause. RevisionDojo's guide to using IB command terms effectively can support this process.
Tip 2: Always show working, even when mental calculation is possible
For calculations, use a consistent four-stage structure:
- Write the relevant equation or physical principle.
- Rearrange it symbolically where useful.
- Substitute values with units or clear powers of ten.
- State the final answer with an appropriate unit, sign, direction and precision.
For instance, do not write only 12.0 m s⁻¹. Show the relationship used and how the given values enter it. If your final number is wrong, visible working may still demonstrate valid physics and can also allow later parts to be assessed consistently when you use your earlier result.
There is an important distinction between rules and strategy. Some official markschemes state that a correct numerical answer without working may receive full credit unless the notes say otherwise. However, the official definition of calculate requires relevant stages in the working, and show explicitly requires steps. Therefore, showing working is the safest general practice, not a claim that every unexplained correct number automatically receives zero.
Working also makes your own review more useful. A markscheme can tell you that an answer is wrong, but a step-by-step solution reveals whether the cause was an incorrect model, algebraic error, unit conversion, calculator entry or premature rounding. Practise this structure using the IB Physics Questionbank, then inspect the detailed solution before attempting a similar problem.
Tip 3: Manage time by marks, not by emotional difficulty
Students often overspend time because a question feels close to completion. That decision can sacrifice several easier marks later in the paper.
At the beginning of practice, use the duration and total marks printed on the paper to calculate an approximate time allowance per mark. Build checkpoints for each section rather than checking the clock after every line. Paper 1A and Paper 1B are completed within one overall Paper 1 period, so you must decide how much time to reserve for the data-based section.
A practical three-pass system works well:
- First pass: Answer questions for which the route is clear.
- Second pass: Return to solvable questions that require longer algebra or interpretation.
- Final pass: Address guesses, blank responses, units and transcription errors.
If you are stuck, leave visible setup before moving on. Write a relevant conservation law, define the variables, draw a free-body diagram or identify the graph quantity you need. This may earn credit and makes the question easier to restart.
Timing should be trained, not improvised on examination day. Complete short timed sets first, then whole sections, and finally full papers. RevisionDojo's Physics predicted papers and mock papers can be used to rehearse current paper formats and review model answers or video solutions where provided.
Tip 4: Review guesses as diagnostic evidence
A correct guess is not secure knowledge. When marking practice, classify each answer as confident, uncertain or guessed before viewing the solution. Review every uncertain or guessed response, including those that happened to be correct.
For Paper 1A, eliminate options using physics before calculating. Check dimensions, limiting cases, vector direction, sign and order of magnitude. If two choices remain, write down what prevented you from deciding; that uncertainty identifies the concept or reasoning step to revise.
For written questions, distinguish between these error types:
- Concept error: You selected the wrong physical model.
- Representation error: You misread a graph, diagram or vector direction.
- Mathematical error: The physics was correct, but algebra or calculator use failed.
- Communication error: You omitted working, units or causal reasoning.
- Timing error: You knew the method but did not complete it efficiently.
Keep a compact error log with four columns: question, error type, corrected principle and next practice date. Reattempt the question without notes after two or three days. If you only read the correction, familiarity can create the illusion that you could reproduce the method independently.
How to review worked solutions properly
Worked solutions are most valuable when treated as models of decision-making rather than scripts to memorize. Use this five-step loop:
- Attempt the question without assistance.
- Mark your response and identify the first point at which it diverges.
- Study why the solution selected that equation, diagram or principle.
- Close the solution and reproduce the method from memory.
- Solve a related question under a shorter time limit.
Ask three questions while watching or reading a solution: What clue identified the topic? Why was this relationship valid? What had to be shown to secure the marks? This trains recognition and communication alongside content knowledge.
For a focused practice session, select one weak topic from the IB Physics revision notes, attempt several questions, and review each detailed solution. The Physics video section and video solutions attached to relevant RevisionDojo paper sets allow you to pause at each step and compare it with your own working. Jojo AI can help explain why a method applies, but you should still reproduce the final solution independently.
Paper-specific checks that prevent avoidable losses
Paper 1A
Answer every question and reserve time to revisit flagged choices. Use estimation before exact calculation, especially when options differ substantially. Check whether the question asks for a magnitude, direction, ratio or change rather than the original quantity.
Paper 1B
Read axis labels, scale factors and units before interpreting a graph. Distinguish gradient from coordinates, and use a large triangle when determining a best-fit gradient. When discussing data, support conclusions with numerical or graphical evidence rather than saying only that two values are “close.”
Paper 2
Show complete calculation routes and answer explanations in causal sequences. Do not abandon later subparts merely because an earlier value seems wrong; use your result consistently unless you can correct it quickly. For extended responses, use the mark allocation to judge the necessary depth and keep every paragraph tied to the stated physical context.
Common revision methods that move grades less
Passive rereading, highlighting and watching solutions before attempting questions can improve familiarity without improving examination performance. Memorizing every equation is also a poor substitute for learning how to navigate the data booklet and identify the conditions under which relationships apply.
Use the IB Physics data booklet resource during practice. For each equation, know the meaning of its symbols, applicable assumptions and common rearrangements. The booklet provides relationships, but it does not decide which physical model fits the question.
Conclusion
The highest-leverage IB Physics exam tips are straightforward: obey the command term, make your reasoning visible, allocate time according to available marks, and review every guess. Their effect comes from repeated application followed by careful comparison with complete worked solutions.
RevisionDojo can support that cycle with topic notes, the Physics Questionbank, Jojo AI feedback, timed predicted papers and step-by-step videos. Start with a timed question set, diagnose the first failed step in each response, and use the relevant worked or video solution before attempting a parallel question.
Sources and referenced URLs
- Official IB Physics subject brief
- Official IB Physics specimen papers and markschemes
- RevisionDojo IB Physics subject hub
- RevisionDojo guide to IB command terms
- RevisionDojo IB Physics Questionbank
- RevisionDojo Physics predicted papers and mocks
- RevisionDojo IB Physics revision notes
- RevisionDojo Physics videos
- RevisionDojo IB Physics data booklet resource
