Mastering the IB Physics IA
A step-by-step breakdown of the assessment criteria and rubric — with curated topic ideas, evaluation checks, and uncertainty models to help you understand exactly what a Level 7 looks like.
Interactive IA Topic Generator
Select a physics branch to instantly generate high-scoring, examiner-aligned research questions.
The 4 Assessment Pillars
Research Design
Formulate a highly specific Research Question (RQ) that explicitly details your Independent Variable (IV) and Dependent Variable (DV) alongside controlled physical parameters.
Data Analysis
Incorporate absolute, fractional, and percentage uncertainties. Linearize graphs and construct maximum/minimum gradient lines to bound your results.
Conclusion
Answer the RQ directly with mathematical evidence derived from your graphs. Contrast experimental outcomes against established theoretical physics models.
Evaluation
Explain how specific systematic and random limitations affected your data. Propose realistic, high-precision technical modifications to resolve them.
Uncertainty & Error Propagation Rules
Examiners look for rigorous mathematical treatment of experimental error. Follow these three rules:
Add the absolute uncertainties: Δy = Δa + Δb
Add the fractional or percentage uncertainties: Δy/y = Δa/a + Δb/b + Δc/c
Multiply the fractional uncertainty by the power index: Δy/y = |n| * (Δa/a)
Academic Honesty & Integrity
We operate strictly in alignment with IB Academic Integrity guidelines. Newtonine does not write, draft, edit, or review Internal Assessments. Our help is limited to clarifying how the assessment criteria and rubric work — so that every piece of your IA is genuinely, entirely your own.