A complete guide to Edexcel A-Level Physics
Edexcel A-Level Physics (specification 9PH0, awarded by Pearson) is one of the three major UK A-Level physics routes. It is a linear two-year course assessed across three written papers at the end of Year 13, plus a Pass or Not Classified practical endorsement run by your teachers. The qualification is built around 13 topics.
This guide covers how each paper is structured, what content is on each, how the core practicals appear in the exam, and the revision techniques that genuinely lift Edexcel physics grades.
Three papers, 13 topics
Paper 1 (Advanced physics I) and Paper 2 (Advanced physics II) test defined topic ranges. Paper 3 (General and practical principles) is synoptic and includes a heavy practical focus.
16 core practicals
Edexcel specifies a fixed list of core practicals across the two-year course (currently 16 – check the spec). Practical questions appear across all three papers, with the highest concentration on Paper 3.
40% maths content
Ofqual subject content requires at least 40% of A-Level physics marks to test mathematical skills.
How Edexcel A-Level Physics is assessed
Edexcel 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 science practical endorsement runs alongside the exams.
The three papers split the spec into two content-led papers and one synoptic, practical-led paper. Together they test recall, application to unfamiliar contexts, and analysis of practical and quantitative data.
| Paper | Content covered | Length | Marks | Weighting |
|---|---|---|---|---|
| Paper 1: Advanced physics I | Working as a physicist, mechanics, electric circuits, further mechanics, electric and magnetic fields, nuclear and particle physics | 1h 45m | 90 | 30% |
| Paper 2: Advanced physics II | Working as a physicist, materials, waves and the particle nature of light, thermodynamics, space, nuclear radiation, gravitational fields, oscillations | 1h 45m | 90 | 30% |
| Paper 3: General and practical principles in physics | Synoptic content from across the whole spec, with a focus on practical techniques and data analysis | 2h 30m | 120 | 40% |
Each paper mixes short structured questions, longer extended responses, and a high proportion of calculation questions. Paper 3 is the biggest single paper in the qualification at 2h 30m and 120 marks, and it is the paper where students who under-prepare on practicals or synoptic links lose grades.
AS and full A-Level Edexcel offers a standalone AS Physics qualification (8PH0) covering only the Year 12 topics, assessed in two 1.5-hour papers. AS marks do not carry forward to the full A-Level: It is a separate qualification. This guide covers the full A-Level (9PH0).
Paper 1 in detail
Paper 1 (Advanced physics I) covers working as a physicist, mechanics, electric circuits, further mechanics, electric and magnetic fields, and nuclear and particle physics. It mixes the Year 12 foundations (mechanics and circuits) with some of the more demanding Year 13 content (fields, capacitance, particle physics).
Topic 1: Working as a physicist
Physical quantities and SI units, scientific method, uncertainty, and how physics is communicated. This topic runs through every other topic and is heavily tested on Paper 3.
Topic 2: Mechanics
Motion (equations of motion, projectile motion, scalars and vectors), forces and Newton's laws, work, energy and power, momentum and conservation, terminal velocity.
Topic 3: Electric circuits
Charge and current, potential difference, resistance, IV characteristics, resistivity, EMF, internal resistance, series and parallel circuits, the potential divider.
Further mechanics
Momentum and impulse in two dimensions, circular motion (angular velocity, centripetal force and acceleration), and applications to vertical and horizontal circular motion.
Electric and magnetic fields
Electric fields (force, field strength, potential, parallel plates), capacitance (energy stored, charging and discharging, RC time constants), magnetic fields (force on a current-carrying conductor, motion of charged particles in fields, electromagnetic induction and Faraday's and Lenz's laws).
Nuclear and particle physics
Probing matter (Rutherford scattering, electron diffraction), particle accelerators, the standard model of particle physics (quarks, leptons, hadrons), particle interactions, and mass-energy equivalence (E = mc²).
Exam tip for Paper 1 Fields content (electric, capacitance, magnetic) is easy to mix up because the equations look similar but apply differently. Build a one-page comparison table for electric and magnetic fields side by side: Force law, field strength, potential, equipotentials. Revisit it weekly until the differences are automatic.
Paper 2 in detail
Paper 2 (Advanced physics II) covers working as a physicist, materials, waves and the particle nature of light, thermodynamics, space, nuclear radiation, gravitational fields, and oscillations. It is the more conceptually varied of the two content papers, blending applied topics like materials and waves with the more abstract content on space and gravitation.
Materials, waves and the particle nature of light
Materials (density, viscosity, Hooke's law, Young's modulus, stress and strain, breaking stress), progressive and stationary waves, the wave equation, superposition and interference, Young's slits, diffraction gratings, refraction and total internal reflection, polarisation, the photoelectric effect, line spectra and energy levels, wave-particle duality.
Thermodynamics, space and nuclear radiation
Thermodynamics (specific heat capacity, latent heat, ideal gas equation, kinetic theory of gases), space (stars, the HR diagram, cosmology, the Doppler effect, Hubble's law, the Big Bang), nuclear radiation (alpha, beta and gamma radiation, half-life and radioactive decay, fission and fusion).
Gravitational fields and oscillations
Gravitational fields (force, field strength, potential, satellites and orbits), and oscillations (simple harmonic motion, energy in SHM, damped and forced oscillations, resonance).
Exam tip for Paper 2 Gravitational fields and SHM are the highest-value topics on this paper. Make sure you can derive g = GM/r² and link circular orbits to gravity, and that you can move comfortably between the SHM equations (x = A cos(ωt), v = -Aω sin(ωt), a = -ω²x) and graphs. Both areas appear in extended response questions often.
Paper 3 in detail
Paper 3 (General and practical principles in physics) is the biggest paper in the qualification: 2h 30m, 120 marks. It is synoptic, so any content from across the spec can come up, but it has a strong focus on practical techniques, planning experiments, evaluating data, and applying physics to unfamiliar contexts.
Paper 3 leans heavily on practical-based questions tied to the core practicals. Expect detailed questions on apparatus, method choice, sources of error, percentage uncertainty, log graphs, and how you would modify a procedure for a different goal. Edexcel's Paper 3 is more practical-heavy than the other papers in this spec.
Exam tip for Paper 3 Paper 3 is long. Pace is everything. Spend the first two minutes scanning the paper and identify the questions with the highest mark counts. Aim to leave the last 15 minutes for the highest-mark extended response, where breadth across the spec is rewarded over depth in one area.
Core practicals
Edexcel specifies a fixed list of core practicals (currently 16 – check the spec) 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. Practical-related questions are concentrated mostly on Paper 3.
These are the core practicals you need to know (titles paraphrased here – refer to the Edexcel 9PH0 spec for the exact wording):
Edexcel A-Level Physics core practicals
- Determine the acceleration of a freely-falling object
- Determine the electrical resistivity of a material
- Determine the e.m.f. and internal resistance of an electrical cell
- Use a falling-ball method to determine the viscosity of a liquid
- Determine the Young modulus of a material
- Determine the speed of sound in air using a 2-beam oscilloscope, signal generator, speaker and microphone
- Investigate the effects of length, tension and mass per unit length on the frequency of a vibrating string or wire
- Determine the wavelength of light from a laser or other light source using a diffraction grating
- Investigate the relationship between the force exerted on an object and its change of momentum
- Use ICT to analyse collisions between small spheres, for example by analysing video
- Use an oscilloscope or data logger to display and analyse the potential difference (pd) across a capacitor as it charges and discharges through a resistor
- Calibrate a thermistor in a potential divider circuit as a thermostat
- Determine the specific latent heat of a phase change
- Investigate the relationship between pressure and volume of a gas at fixed temperature
- Investigate the absorption of gamma radiation by lead
- Determine the value of an unknown mass using the resonant frequencies of the oscillation of known masses
Where students lose marks Practical questions almost always ask for percentage uncertainty. The rules are: For a single reading use half the smallest division; for repeated readings use half the range; combine uncertainties using the right rule for the operation (add fractional uncertainties for multiplication/division, multiply by the power for powers). These come up often and are usually worth a few marks each.
The practical endorsement
Alongside your A-Level grade, you receive a Pass or Not Classified on the science 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.
Some degree courses (engineering, physics, medicine) require a pass in the practical endorsement – check individual course pages. Per Ofqual practical endorsement rules, the endorsement is reported separately as Pass or Not Classified.
Mathematical content
Ofqual subject content requires at least 40% of A-Level physics marks to test mathematical skills at Level 2 (GCSE higher) or above. 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 score 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're not taking maths, a strong GCSE maths grade (8 or 9) makes the workload easier.
5 tips for Edexcel A-Level Physics revision
Edexcel A-Level Physics's Paper 3 is more practical-heavy than the other papers in this spec, so practical skills can swing a grade more than most students realise.
1. Drill the data sheet equations daily
You are given a data booklet with the standard 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.
2. Treat Paper 3 like a separate qualification
Paper 3 is the largest paper at 40% – more weight than either of the other two papers on its own. Build a specific revision block for it in the run-up to exams, focused on the core practicals, evaluation questions, and synoptic answers. Past Paper 3 questions are the single best preparation.
3. Practise multi-step calculations 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.
4. Drill the core practicals like exam questions
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 reliable mark-grabbers in the whole course.
5. Use past papers as a diagnostic
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.