A-Level Physics Revision Notes

16 free revision notes covering every main A-Level Physics topic. No account needed.

A-Level Physics rewards students who understand a small number of principles deeply rather than many superficially. Conservation of energy, conservation of momentum and the field concept recur across mechanics, electricity, nuclear physics and astrophysics, and recognising them in an unfamiliar context is most of the skill.

Mathematical fluency matters more than at GCSE. Rearranging, working in standard form and handling units confidently are assumed, and a physically correct answer still loses marks if the arithmetic or the units are wrong.

Practical skills are assessed in the written papers as well as in the endorsement. Questions about uncertainty, percentage error, and why a particular experimental design reduces a specific error are common and are widely under-revised.

Extended questions are marked on the quality of the reasoning chain. State the principle, apply it to the situation described, and reach a conclusion — a collection of correct but unconnected facts does not score.

These notes cover mechanics, materials and waves, electricity, fields, nuclear and particle physics, and astrophysics.

Astrophysics

Stars, Cosmology and the Expanding Universe

Electricity and Circuits

Current, Resistance and Resistivity EMF, Internal Resistance and Potential Dividers

Further Mechanics and Thermal Physics

Circular Motion and Simple Harmonic Motion Thermal Physics and Ideal Gases

Gravitational, Electric and Magnetic Fields

Gravitational Fields Electric and Magnetic Fields and Electromagnetic Induction

Materials and Waves

Materials: Stress, Strain and Young's Modulus Wave Properties and Superposition Quantum Physics: Photoelectric Effect and Wave-Particle Duality

Mechanics

Vectors, Forces and Moments Kinematics and Projectile Motion Newton's Laws, Momentum and Impulse Work, Energy and Power

Nuclear and Particle Physics

Radioactivity and Nuclear Energy Particle Physics and the Standard Model

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