OCR As Physics A Paper 2 2025 Question Paper

Download the official OCR AS Level Physics A H156/02 Depth in Physics question paper from the June 2025 examination series. This downloadable PDF contains the complete OCR AS Physics A Paper 2 exam sat on Wednesday 21 May 2025, including structured calculations, graph-analysis tasks, practical-investigation questions, uncertainty evaluation, and extended-response Physics problems in the official OCR exam format.

The OCR H156/02 June 2025 question paper covers a wide range of AS Physics A topics including velocity-time graphs, acceleration and stopping distance, uncertainty calculations, density measurements, buoyancy, mobile charge carriers, thermistors, potential dividers, electromotive force, potentiometers, free-body diagrams, work done, power, momentum conservation, inelastic collisions, interference, diffraction, coherence, refractive index, prisms, photon calculations, and Planck constant investigations.

Question 1 focuses on a high-speed passenger train slowing from 54 m s⁻¹, requiring students to determine acceleration from a velocity-time graph, calculate total stopping distance using graphical methods, and explain why the simplified graph does not fully represent real train motion. The question tests graph interpretation and mechanics reasoning.

Question 2 investigates uncertainty and density using metal spherical balls and buoyancy in water. Students calculate the mass of spheres from density and diameter measurements, determine percentage uncertainty, analyse floating cylinders, and compare behaviour in tap water versus sea water using Archimedes’ principle and density concepts.

Question 3 explores mobile charge carriers and thermistor circuits. Students analyse ion movement through soaked filter paper, compare visible charge carriers, calculate voltmeter readings in potential-divider circuits, determine thermistor resistance at different temperatures, and evaluate resistor suitability for temperature measurement systems.

Question 4 centres on electromotive force and potentiometers. Candidates compare e.m.f. and potential difference before describing a full potentiometer experiment for comparing the e.m.f. of two cells safely using resistance wire, null methods, and additional measuring equipment.

Question 5 examines forces, work, and power using a loaded shopping trolley. Students draw free-body diagrams, calculate pushing force, derive the equation P = Fv from first principles, determine work done against gravity on a slope, and calculate the total power needed to move the trolley at constant velocity.
Question 6 investigates momentum conservation and collisions using an air-track experiment with gliders and magnets. Students calculate momentum, impulse, velocity after collision, and use energy considerations to show that a collision is inelastic when gliders stick together.

Question 7 focuses on photons, interference, and refraction. Students calculate photon emission rates from laser power, determine double-slit fringe separation, explain coherent light, analyse fringe-width measurements, calculate slit separation, and apply refractive-index calculations to an equilateral glass prism.

Question 8 is an extended practical-analysis task involving LEDs and Planck’s constant. Students interpret experimental data, analyse a graph of voltage against frequency, describe accurate methods for measuring threshold voltage, determine Planck’s constant from graph gradients, calculate uncertainty, and evaluate graphical methods.
This OCR AS Physics A Depth in Physics question paper is ideal for timed exam practice, graph-analysis revision, uncertainty evaluation, practical-skills development, and improving AO1 knowledge, AO2 application, and AO3 analytical reasoning under authentic OCR examination conditions. Pair this paper with the official OCR H156/02 June 2025 mark scheme on markscheme.net for complete examiner-standard revision and self-assessment. Updated for the 2025/2026 academic year, fully mobile-friendly, and instantly downloadable.

This document is designed for AS Level Physics students preparing for the 2026 OCR examination series, resit candidates improving Depth in Physics exam performance, home-educated learners, and independent candidates studying OCR AS Physics A. It is especially valuable for students practising uncertainty calculations, graph interpretation, practical investigations, momentum analysis, electrical circuits, and AO1/AO2/AO3 Physics exam technique under real OCR exam conditions.

Teachers, Physics departments, tutors, revision-course providers, intervention coordinators, and parents can use this official OCR question paper for mock examinations, classroom discussion, graph-analysis workshops, retrieval practice, and benchmarking student responses against live June 2025 OCR assessment standards.