Overall Exam Overview & Difficulty Verdict
The May/June 2026 series of Cambridge International AS & A Level Physics (9702) presents a thoroughly balanced, standard-to-challenging assessment profile across all five examination components: Paper 12 (Multiple Choice), Paper 22 (AS Structured), Paper 32 (Practical Skills), Paper 42 (A Level Structured), and Paper 52 (Planning, Analysis, and Evaluation). The overall difficulty is rated at 3.4 / 5.0 (3 Stars). While standard algorithmic recall and formula substitution award baseline marks, discriminating marks are concentrated in algebraic derivations, multi-step thermodynamics, kinetic theory modeling, and rigorous uncertainty propagation.
Where the Marks Are Concentrated
Marks are heavily anchored in experimental methodology and foundational mechanics/fields:
- Practical & Experimental Skills (Papers 32 & 52): Accounting for 70 marks combined, testing precision in measurements, linearizing equations, graphical slope/intercept evaluation, and identifying systematic uncertainties and realistic improvements.
- A-Level Core Topics (Paper 42): Prominent weightings appear in Thermodynamics & Ideal Gases (24 marks), Oscillations & Gravitational Fields (17 marks), and Electromagnetism & Capacitance (20 marks). Paper 42 demands robust first-principles derivations, such as the kinetic theory derivation \(pV = \frac{1}{3}Nm\langle c^2 \rangle\).
- AS Structured Core (Paper 22): Centered on kinematics graphs, coplanar equilibrium vector resolution, stationary/progressive wave superposition, and D.C. circuit analysis involving drift velocity and non-linear components (LDR).
Examiner Pitfalls & Critical Loss Areas
Examiner feedback highlights recurring candidate vulnerabilities:
- Sign Conventions & Vector Directions: In potential calculations (gravitational \(\phi = -\frac{GM}{r}\) and electric potential \(V\)), candidates frequently omit minus signs or fail to recognise work done by versus on a system.
- Unit Prefix Conversions: Dropping metric prefixes during multi-step energy conversions (e.g., \(\text{MJ}\) to \(\text{J}\), \(\mu\text{J}\) to \(\text{J}\), and \(\text{cm}\) to \(\text{m}\)) caused significant compensatory mark loss.
- Graph Sketching Specificity: Sketches such as kinetic energy against displacement \(E_k\text{ vs }x\) in SHM or displacement-time curves required precise vertex intercepts and quadratic curvatures rather than crude linear approximations.
- Precise Diction in Definitions: Incomplete definitions (e.g. defining binding energy without stating 'to separate nucleons to infinity' or specific heat capacity without 'unit mass per unit temperature change') cost standard B-marks.
Preparation Strategy & Forward Look
To maximize examination performance, candidates should practice systematic mathematical setting-out: always state the base equation in standard algebraic symbols before numerical substitution. Prioritize mastering linearization in Paper 52 (e.g., transforming non-linear models into \(y = mx + c\)) and error bar plotting. With topics such as Nuclear Binding Energy, Capacitance Discharging, and Hall Effect recurring with high mark yield, solidifying conceptual explanations alongside numerical fluency is essential.