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AQA A-Level Physics: mark schemes, model answers, and where the marks really go

78 Physics topics, each grounded on the AQA specification. Every page shows the atomic answer, decodes the mark scheme point by point, and works a model answer with every step tagged to the mark it earns.

Machine-verifiedchecked against the AQA A-Level Physics specificationlast verified 2 July 2026

- AQA A-Level Physics: Fundamental and Derived Units in Physics — mark scheme explained
- AQA A-Level Physics: Errors and Uncertainties in Measurements — mark scheme explained
- AQA A-Level Physics: Properties of Quarks and Antiquarks — mark scheme explained
- AQA A-Level Physics: Line Spectra and Energy Level Transitions in Atoms — mark scheme explained
- AQA A-Level Physics: Wave-Particle Duality and Electron Diffraction — mark scheme explained
- AQA A-Level Physics: Waves: Oscillations and Properties — mark scheme explained
- AQA A-Level Physics: Diffraction Patterns and Gratings — mark scheme explained
- AQA A-Level Physics: Refractive Index and Optical Fibres — mark scheme explained
- AQA A-Level Physics: Displacement, Speed, Velocity, and Acceleration — mark scheme explained
- AQA A-Level Physics: Motion in Horizontal and Vertical Directions in a Uniform Gravitational Field — mark scheme explained
- AQA A-Level Physics: Work, Power, and Efficiency in Mechanics — mark scheme explained
- AQA A-Level Physics: Conservation of Energy and Its Applications — mark scheme explained
- AQA A-Level Physics: Young Modulus and Stress-Strain Graphs — mark scheme explained
- AQA A-Level Physics: Electric Current and Potential Difference — mark scheme explained
- AQA A-Level Physics: Electrical Characteristics and Ohm's Law — mark scheme explained
- AQA A-Level Physics: Simple Harmonic Motion (SHM) Analysis — mark scheme explained
- AQA A-Level Physics: Simple Harmonic Motion (SHM) and Damping — mark scheme explained
- AQA A-Level Physics: Internal Energy and Heat Transfer — mark scheme explained
- AQA A-Level Physics: Gas Laws and Ideal Gas Equation — mark scheme explained
- AQA A-Level Physics: Brownian Motion and Kinetic Theory of Gases — mark scheme explained
- AQA A-Level Physics: Gravitational Force Between Point Masses — mark scheme explained
- AQA A-Level Physics: Gravitational Field Lines and Gravitational Field Strength — mark scheme explained
- AQA A-Level Physics: Electric Fields and Their Representation — mark scheme explained
- AQA A-Level Physics: Definition of Capacitance: C = Q / V — mark scheme explained
- AQA A-Level Physics: Dielectric Action in Capacitors and Relative Permittivity — mark scheme explained
- AQA A-Level Physics: Interpretation of the Area Under a Graph of Charge Against Potential Difference — mark scheme explained
- AQA A-Level Physics: Capacitor Charging and Discharging Through Resistors — mark scheme explained
- AQA A-Level Physics: Force on a Current-Carrying Wire in a Magnetic Field — mark scheme explained
- AQA A-Level Physics: Force on Charged Particles in a Magnetic Field and Applications — mark scheme explained
- AQA A-Level Physics: Electromagnetic Induction and Faraday's Law — mark scheme explained
- AQA A-Level Physics: Sinusoidal Voltages and Currents, RMS Values, and Oscilloscope Use — mark scheme explained
- AQA A-Level Physics: Transformers and Power Transmission — mark scheme explained
- AQA A-Level Physics: Rutherford Scattering and the Evolution of Nuclear Structure Understanding — mark scheme explained
- AQA A-Level Physics: Radioactive Decay and Half-Life — mark scheme explained
- AQA A-Level Physics: Nuclear Energy and Binding Energy — mark scheme explained
- AQA A-Level Physics: Image Formation and Angular Magnification in a Telescope — mark scheme explained
- AQA A-Level Physics: Cassegrain Reflectors and Aberrations in Telescopes — mark scheme explained
- AQA A-Level Physics: Minimum Angular Resolution and Detector Comparison in Telescopes — mark scheme explained
- AQA A-Level Physics: Parsec and Light Year, Definition of M and m: m – M = 5 log 10 (d/10) — mark scheme explained
- AQA A-Level Physics: Stefan’s Law and Wien’s Displacement Law in Astrophysics — mark scheme explained
- AQA A-Level Physics: Hertzsprung-Russell Diagram and Stellar Evolution — mark scheme explained
- AQA A-Level Physics: Supernovae, Neutron Stars, Black Holes, and Gamma Ray Bursts — mark scheme explained
- AQA A-Level Physics: Doppler Effect in Astrophysics — mark scheme explained
- AQA A-Level Physics: Simple Structure of the Ear and Transmission Processes — mark scheme explained
- AQA A-Level Physics: Equal Loudness Curves and Sound Intensity Levels — mark scheme explained
- AQA A-Level Physics: ECG Waveform Principles and Characteristics — mark scheme explained
- AQA A-Level Physics: Ultrasound in Medical Physics — mark scheme explained
- AQA A-Level Physics: Fibre Optics in Medical Physics — mark scheme explained
- AQA A-Level Physics: Basic Principles of MRI Scanning — mark scheme explained
- AQA A-Level Physics: Production and Control of X-rays in Medical Physics — mark scheme explained
- AQA A-Level Physics: Flat Panel Detectors and X-ray Imaging Techniques — mark scheme explained
- AQA A-Level Physics: Exponential Attenuation of X-rays — mark scheme explained
- AQA A-Level Physics: Physical, Biological, and Effective Half-Lives — mark scheme explained
- AQA A-Level Physics: Photomultiplier Tube and Gamma Camera Basics — mark scheme explained
- AQA A-Level Physics: External Treatment Using High-Energy X-Rays and Methods to Limit Exposure to Healthy Cells — mark scheme explained
- AQA A-Level Physics: Comparing Imaging Techniques in Medical Physics — mark scheme explained
- AQA A-Level Physics: Energy Storage in Flywheels and Their Applications — mark scheme explained
- AQA A-Level Physics: Angular Motion and Uniform Angular Acceleration — mark scheme explained
- AQA A-Level Physics: Torque and Rotational Dynamics — mark scheme explained
- AQA A-Level Physics: Torque and Power in Rotating Machinery — mark scheme explained
- AQA A-Level Physics: Thermodynamic Processes and the First Law of Thermodynamics — mark scheme explained
- AQA A-Level Physics: Work Done in p-V Diagrams and Cyclic Processes — mark scheme explained
- AQA A-Level Physics: Heat Pumps and Refrigerators: Coefficients of Performance — mark scheme explained
- AQA A-Level Physics: Thermionic Emission and Electron Acceleration — mark scheme explained
- AQA A-Level Physics: Charged Oil Droplets and Millikan's Experiment — mark scheme explained
- AQA A-Level Physics: Fringes and Huygens' Wave Theory of Light — mark scheme explained
- AQA A-Level Physics: Ultraviolet Catastrophe and Black-Body Radiation — mark scheme explained
- AQA A-Level Physics: de Broglie’s Hypothesis and Electron Diffraction — mark scheme explained
- AQA A-Level Physics: Anode Voltage and Microscopes in Atomic Physics — mark scheme explained
- AQA A-Level Physics: Inertial Frames and Special Relativity Postulates — mark scheme explained
- AQA A-Level Physics: Length Contraction in Special Relativity — mark scheme explained
- AQA A-Level Physics: MOSFETs: Structure, Characteristics, and Applications — mark scheme explained
- AQA A-Level Physics: Zener Diodes and Their Applications — mark scheme explained
- AQA A-Level Physics: Difference Amplifier Configuration and Output Voltage Calculation — mark scheme explained
- AQA A-Level Physics: Limitations of Real Operational Amplifiers and Frequency Response — mark scheme explained
- AQA A-Level Physics: Block Diagram of Real-Time Communication System — mark scheme explained
- AQA A-Level Physics: Time-Division Multiplexing — mark scheme explained
- AQA A-Level Physics: Principles of Modulation and Bandwidth in Electronics — mark scheme explained

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