Topic 1
Atomic structure and radiation
Nuclear structure, radioactive decay, half-life and radiation risks.
Step 3 of 4 · choose topic
GCSE (9–1) Physics A (Gateway Science)
This page is matched to OCR J249. View the official course specification.
Sign in to save this specification as your course and reopen it quickly from My progress.
Course map
Use these checkpoints to work through the Physics content currently published for OCR J249. Progress labels apply to the topic as a whole rather than to individual checklist statements.
Mix questions from across the topics available for this course. Choose a target mark total and paper version, then work through the questions before opening the mark schemes.
Build exam practiceQuestion and retrieval-card counts show content available with your current access level.
Topic 1
Nuclear structure, radioactive decay, half-life and radiation risks.
Topic 2
Mains electricity, plugs and cables, electrical power, energy and household safety.
Topic 3
Force-extension behaviour, Hooke's law, elastic energy and material response.
Topic 4
Current, potential difference, resistance, power and energy.
Topic 5
Static charge, electric fields, induction, earthing, uses and hazards.
Topic 6
Energy stores, transfers, work, power and efficiency.
Topic 7
Renewable and non-renewable resources, electricity generation, reliability and environmental impact.
Topic 8
Resultant force, acceleration, momentum and motion graphs.
Topic 9
Reflection, refraction, lenses, image formation and optical measurements.
Topic 10
Magnetic fields, electromagnets, the motor effect and electromagnetic induction.
Topic 11
Turning effects, equilibrium, pressure in solids and fluids, and upthrust.
Topic 12
Density, internal energy, heating and changes of state.
Topic 13
Variables, measurement, uncertainty, graphs, evidence, evaluation and safe experimental design.
Topic 14
The Solar System, gravity and orbits, stellar evolution and evidence for an expanding Universe.
Topic 15
Wave properties, wave speed, refraction and the electromagnetic spectrum.