When should I start my IB Physics IA to finish before winter break?

Start during the first week of September if you want a polished final report by the end of November. Use September to refine the research question, test the apparatus, and secure teacher approval. Complete the main data collection during the first half of October and preserve at least one additional week for repeated trials. Process the data by the end of October, then write the full report during the first half of November. This leaves approximately two weeks for permitted feedback, revision, references, and final formatting.

Can I complete the IB Physics IA in one month?

It is possible, but one month gives you very little protection against experimental problems or restricted laboratory access. A four-week schedule would require an approved question and available equipment from the beginning. You would need to pilot and collect data almost immediately, leaving only a short period for processing and writing. The greatest risk is discovering too late that the measured effect is smaller than the experimental uncertainty. A longer September-to-November schedule is safer because it separates design, data collection, analysis, and revision.

How many hours per week should I spend on the Physics IA?

Plan approximately two focused IA sessions each week, with additional laboratory time when you collect the main data. The official IB subject brief lists 10 hours for the scientific investigation, but your calendar plan should also account for equipment booking, teacher checkpoints, and independent organization. Avoid trying to compensate for delayed work with one very long weekend session. Short, regular sessions make it easier to preserve accurate records and notice weaknesses early. Your teacher can clarify which activities are included within your school's allocated IA time.

What should be finished by the end of September?

By September 30, you should have a focused research question, defined variables, relevant physics theory, and an approved method. You should also have completed a pilot across enough of the planned range to determine whether the effect is measurable. Prepare blank raw-data tables with headings, units, and uncertainties before the main experiment. Confirm your safety procedures, apparatus availability, and backup laboratory date with your teacher. If these elements are incomplete, postpone extensive report writing and resolve the experimental design first.

What if my Physics IA experiment fails in October?

First determine whether the problem comes from the research question, measurement method, variable range, or equipment. A weak signal may sometimes be improved through a wider safe range, more precise sensor, longer measurement interval, or tighter control of environmental conditions. Discuss substantial changes with your teacher before collecting a replacement data set. Keep an honest record of the failed trial because it may help explain methodological decisions, although not every pilot result needs to appear in the final report. If you reserved a mid-October buffer, you can repair the design without sacrificing the November writing period.

Should I write the Physics IA while collecting data?

You can draft the research question, scientific context, variables, safety considerations, and provisional method before the main experiment. However, do not finalize the method until it accurately reflects what you actually did. Record observations and methodological changes during every laboratory session so that your final account remains reproducible. Complete the central processing and graphs before writing the conclusion and evaluation, because those sections must respond to the evidence. Writing in stages is efficient, but forcing a conclusion before analysing the data usually creates unsupported claims.

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IB Physics IA Timeline: Finish Before Winter Break

IB Physics IA Timing IB IA

RevisionDojo Team

•Last updated: 15 Oct 2026•11 min read

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IB Physics IA Timeline: Finish Before Winter Break

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IB Physics IA Timeline: Finish Before Winter Break

IB Physics IA Timing IB IA

RevisionDojo Team

•Last updated: 15 Oct 2026•11 min read

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A workable IB Physics IA timeline begins in early September and targets final submission by November 30. Use September to choose and pilot the investigation, October to collect and process data, and November to write, obtain permitted feedback, and revise.

This September-to-November plan is a recommendation, not an IB deadline. Your school sets its own internal deadlines, so confirm dates for topic approval, laboratory access, draft feedback, and final submission before adapting the schedule.

What the IB officially requires

Under the current Physics course, the internal assessment is officially called the scientific investigation. The official IB Physics subject brief describes it as an open-ended investigation in which you collect and analyse data to answer your own research question.

The main requirements are:

The report has a maximum overall word count of 3,000 words.
The investigation contributes 20% of the final Physics grade at SL and HL.
The IB allocates 10 hours to the internal assessment.
Teachers mark the work internally, after which the IB may moderate the marks.
Assessment uses four criteria: Research design, Data analysis, Conclusion, and Evaluation, for 24 marks in total.

The 10-hour allocation does not mean you should attempt the project in one week. Spreading the investigation across three months creates time to reserve equipment, repeat unsuccessful trials, process uncertainties, and respond to allowed teacher feedback.

Recommended September-to-November timeline

This fall IA schedule for Physics assumes that you start in the first week of September. Adjust it around school holidays, laboratory availability, and teacher checkpoints.

Period	Main objective	Required deliverable
September 1-7	Identify feasible topics	Shortlist of 2-3 measurable ideas
September 8-14	Refine the question	Variables, range, and theoretical model
September 15-21	Conduct a pilot	Pilot data and necessary changes
September 22-30	Finalize the design	Approved method, safety plan, and equipment booking
October 1-12	Collect main data	Complete raw data with units and uncertainties
October 13-19	Repair or repeat	Replacement trials and investigated anomalies
October 20-31	Process results	Calculations, uncertainty treatment, and graphs
November 1-9	Begin the report	Research design and data analysis sections
November 10-16	Complete the first draft	Conclusion, evaluation, and complete report
November 17-23	Use permitted feedback	Scientifically revised draft
November 24-30	Conduct the final audit	Proofread, referenced final report

Protect October 13-19 as an experimental buffer. Apparatus failures, inconsistent readings, uncontrolled temperatures, small signal changes, and unavailable equipment can disrupt even a seemingly simple investigation.

September: develop a testable investigation

Choose a feasible idea

Start with available equipment and time, not the most sophisticated topic you can imagine. A manageable investigation normally has one clearly varied independent variable, one measured dependent variable, relevant controls, repeated measurements, and a physical model for comparison.

For example, asking how pendulum length affects period is more useful than asking broadly what affects pendulum motion. A focused question should specify the length range, measurement method, and conditions being controlled.

Use the guide to choosing a manageable IA experiment to reject ideas requiring unavailable sensors, unsafe procedures, or several changing variables. Originality is less important than a defensible method and sufficient quantitative evidence.

Plan the analysis before collecting data

Your question should identify the independent variable, dependent variable, physical system, and relevant range. Decide which graph, equation, gradient, exponent, or accepted value will answer it.

For a pendulum investigation, the model

T=2\pi\sqrt{\frac{L}{g}}

suggests plotting $T^2$ against $L$ to test the expected linear relationship. This planning prevents you from collecting numerous measurements that do not test a meaningful physical model.

Pilot and finalize the method

A genuine pilot tests the complete procedure at the lowest, middle, and highest planned values. Check whether the change in the dependent variable is large relative to its uncertainty, whether controls can be maintained, and whether repetitions show acceptable variation.

By September 30, secure approval for the question, method, apparatus, safety assessment, prepared data tables, and laboratory booking. Record instrument resolution and measurement uncertainty immediately. The Physics IA essentials guide provides an overview, but your teacher's safety and approval procedures take priority.

October: collect and process reliable data

Complete the main experiment during October 1-12. Record raw measurements immediately using descriptive headings, units, uncertainties, consistent precision, and relevant qualitative observations.

Collect enough data to identify a trend, assess random variation, and notice anomalies. During October 13-19, repeat questionable measurements or repair the method. Repeating trials is legitimate when reported honestly; deleting inconvenient results without scientific justification is not.

During October 20-31, calculate derived quantities, handle uncertainties appropriately, and produce correctly labelled graphs. Include at least one sample calculation, check significant figures, and retain full precision until final rounding.

By the end of October, you should be able to explain what the gradient, intercept, fit, or percentage discrepancy means physically. If that interpretation remains unclear, resolve it before drafting the conclusion.

November: turn evidence into the report

Draft Research design and Data analysis during November 1-9. Explain why you selected the range, intervals, instruments, repetitions, and controls rather than providing only an equipment list and procedure.

During November 10-16, write a conclusion that directly answers the research question using processed results. Compare your findings with the theoretical model or accepted value and account for uncertainty where appropriate.

Your evaluation should prioritize limitations according to their effect. Replace vague claims such as “human error affected the experiment” with a specific mechanism, its likely effect on scatter, gradient, intercept, or accuracy, and a feasible improvement.

Use the IB Physics IA rubric explanation to check that all four criteria are visible. Annotated Physics IA examples can demonstrate effective scientific communication, but you should never copy an exemplar's wording, structure, or method.

Reserve November 17-23 for feedback permitted under your school's process. Use November 24-30 to:

Check titles, captions, quantities, units, and uncertainty notation.
Verify significant figures and decimal places.
Acknowledge every source, image, model, and external data set.
Confirm that the conclusion answers the exact question.
Connect each major limitation to a realistic improvement.
Remove repeated theory and remain within 3,000 words.
Export the required file and inspect it after conversion.

Common scheduling mistakes

Waiting for the perfect idea sacrifices valuable piloting time. Select a viable topic early, then improve its range, measurement method, and analysis.

Writing before processing data often produces excessive background theory and weak analysis. Complete the calculations and central graphs first so that evidence controls the report.

Booking only one laboratory session leaves no recovery route if the apparatus fails. Arrange a main session and backup period before demand for equipment increases.

Leaving revision until November 30 defeats the purpose of the timeline. Aim for a complete first draft by approximately November 16, leaving two weeks for correction and formatting.

Managing weekly work

Plan two focused planning or writing sessions each week, plus laboratory time during data collection. Keep a brief decision log recording what changed, why it changed, which files were created, and what must happen next. This makes the final method and evaluation easier to write accurately.

For another criterion check, the RevisionDojo Physics IA Grader can identify areas requiring closer review. AI feedback should support your judgment, not replace your analysis or your teacher's instructions.

Conclusion

To finish before winter break, begin the IB Physics IA timeline in early September, finalize the design by the end of that month, complete data collection and processing in October, and produce a first draft by mid-November. Protecting time for failed trials and revision is more valuable than assuming the first experiment will work perfectly.

RevisionDojo can support the process through Physics IA guides, annotated examples, Jojo AI, and rubric-aligned IA Feedback. Use planning resources early and the Physics IA Grader near submission, while following your teacher's deadlines and academic integrity requirements.