A complete guide to AQA A-Level Physics

AQA A-Level Physics (specification 7408) is a gateway qualification to engineering, physics, computer science, medicine and many maths-heavy degrees. It is a linear two-year course assessed across three written papers at the end of Year 13, with the unusual feature that Paper 3 includes an optional unit you choose from a list of five.

This guide covers how each paper is structured, what each section of the course covers, how the 12 required practicals appear in the exam, and the revision techniques that genuinely lift A-Level physics grades. We will also talk honestly about the mathematical content – physics has by far the highest maths weighting of the three sciences.

AQA A-Level Physics is a linear qualification: All three papers are sat at the end of Year 13 in the May/June exam series. There is no coursework that contributes to your grade, although the practical endorsement runs alongside the exams.

Papers 1 and 2 cover specific compulsory content. Paper 3 splits into Section A (practical skills and data analysis) and Section B (an optional unit you choose from five). The structure rewards students who pick an optional unit that genuinely interests them and revise it deeply.

Each paper mixes short structured questions, longer extended responses, and a high proportion of calculation questions. Multi-step calculations worth 4–6 marks each are common on Papers 1 and 2.

Paper 1 covers sections 1 to 5.1: Measurements and their errors, particles and radiation, waves, mechanics and materials, and the first half of electricity. It is the foundation paper and the calculations are the most direct of the three papers.

Constituents of the atom, stable and unstable nuclei, particles and antiparticles, hadrons and leptons, conservation laws, quarks and antiquarks, the photoelectric effect, line spectra and energy levels, wave-particle duality.

Progressive and stationary waves, the wave equation, superposition and interference, Young's slits, single slit diffraction, diffraction gratings, refraction at a plane surface, optical fibres.

Scalars and vectors, motion in a straight line, projectile motion, Newton's laws, momentum, work, energy and power, conservation of energy. Materials covers bulk properties (density, Hooke's law, Young's modulus, stress and strain).

Current and charge, potential difference and resistance, IV characteristics, resistivity, EMF, internal resistance, series and parallel circuits, the potential divider.

Paper 2 covers section 5.2 (the second half of electricity is integrated here in practice) and sections 6 to 8: Further mechanics and thermal physics, fields and their consequences, and nuclear physics. This is the more abstract and conceptually demanding of the two content papers.

Circular motion, simple harmonic motion (SHM), resonance and damping, mass on a spring, the simple pendulum. SHM problems combine well with energy conservation and are a common 5–6 mark question.

Specific heat capacity, specific latent heat, the ideal gas equation, kinetic theory, molecular kinetic energy.

Gravitational fields (force, field strength, potential, energy in fields, satellites and orbits), electric fields (force, field strength, potential, parallel plates), capacitance (energy stored, capacitor charging and discharging, RC circuits), magnetic fields (force on a current-carrying wire, motion of charged particles, electromagnetic induction, transformers).

Rutherford scattering, alpha, beta and gamma radiation, radioactive decay, half-life, mass-energy equivalence, induced fission, nuclear reactors, fusion.

Paper 3 splits into two sections. Section A (45 marks) is on practical skills and data analysis. Expect detailed questions on the required practicals: Apparatus, method, sources of error, percentage uncertainty, log graphs, and evaluating data. Section B (35 marks) is the optional unit you have chosen from a list of five.

The five optional units are: Astrophysics, Medical physics, Engineering physics, Turning points in physics, and Electronics. You only sit one. The choice is made in advance with your school: Most schools teach one option (Astrophysics is the most common), but a small number offer a choice.

AQA specifies 12 required practicals across the two-year course. You will not perform them in the exam, but you will be tested on the methods, the variables, the safety, the sources of error, and the underlying physics. Around 15% of the marks across all three papers come from practical-related questions, with the largest concentration in Section A of Paper 3.

These are the 12 required practicals you need to know:

Alongside your A-Level grade, you receive a Pass or Fail on the practical endorsement. This is a separate assessment based on your teacher's judgement of your competence in lab work throughout the two-year course, against five Common Practical Assessment Criteria (CPAC). There is no exam.

A pass in the practical endorsement is required for some degree courses, especially engineering, physics, and medicine. Universities check it when they receive your results. If you fail, your A-Level grade is unaffected, but the endorsement is recorded as Not Classified.

Ofqual requires at least 40% of the marks in A-Level physics to test mathematical skills at Level 2 (GCSE higher) or above. In practice AQA papers often sit slightly above this. The maths content includes algebraic rearrangement, trigonometry, logarithms (essential for radioactive decay and capacitor discharge), exponential functions, basic calculus concepts (rate of change graphically), uncertainty propagation, and graph analysis (gradients, intercepts, log-log plots).

Most students who get an A or A* in A-Level physics also take A-Level maths. It is not formally required, but the speed and confidence that maths A-Level builds make a real grade-level difference. If you are not taking maths, a grade 8 or 9 in GCSE maths is the unofficial minimum.

A-Level physics is more about applying a small number of equations very fluently than memorising a huge bank of content. Students who score A and A* drill the same equations in different contexts until they can spot which one to use under exam pressure.

You are given a data sheet with most of the equations. Drill yourself on what each one means, what each variable is, and what units it has. The students who lose marks are not the ones who forget the equation – they are the ones who pick the wrong equation under time pressure.

A-Level physics calculations are rarely one-step. A typical 5-mark question involves three or four sub-calculations that must be done in the right order with the right units. Past paper calculations under timed conditions are the single best preparation.

Section B of Paper 3 is 35 marks. That is 14% of your A-Level. Treat the optional unit like a separate qualification with its own revision schedule, especially in the final two months. Past paper questions from your specific optional unit are essential – do not just rely on the textbook.

Do not just memorise each method. Learn the variables, the controls, the percentage uncertainty calculation, and the graph you would plot. Past paper questions on practicals are some of the most predictable mark-grabbers in the whole course.

Doing a past paper and putting it back on the shelf is wasted work. Mark it honestly, write down every topic where you lost marks, and revise that specific content before doing another paper. The biggest jumps in physics scores come from fixing recurring weaknesses, not from doing more papers.