H2 Physics 9478 · Topic 1
Quantities & Measurement: units, uncertainty and vectors
Connect unit reasoning, realistic estimates, measurement quality and vector components into one reliable problem-solving routine.
Before you begin
Study each reviewed objective cluster, then use the recorded diagnostic and repair plan. H2 practice evidence remains separate from H1 and H3.
Be comfortable with: Dimensional AnalysisUncertainty
Learn in order
Lesson route
Prove your understanding
Practice and repair
Key ideas and reference
Use this concise Quantities & Measurement: units, uncertainty and vectors checklist to locate the right objective cluster. Full definitions, derivations and worked examples stay in the linked lessons.
- Connect unit reasoning, realistic estimates, measurement quality and vector components into one reliable problem-solving routine.
- Complete Quantities & Measurement: units, uncertainty and vectors lesson
Course coverage and review details
Coverage is reviewed against 9478 topic 1(a)–(j), PDF page 11. Selected-response progress does not by itself prove constructed, diagrammatic or practical performance.
Reviewed 2026-08-01