Physics 7408/3A June 2020

The AQA A-level Physics Paper 3A (November 2020) evaluates experimental and practical skills in key areas such as simple harmonic motion, beam bending, and circuit analysis. Questions focus on determining oscillation periods, damping factors, and Young’s modulus through data analysis and graph interpretation. Key components include designing experimental setups, calculating uncertainties, and deducing relationships between variables. Topics of circuit investigations explore emf, internal resistance, and potential difference through graphical methods. Emphasis is placed on precision, methodical experimentation, and analytical reasoning. Keywords: AQA Physics, SHM, damping factor, beam deflection, experimental physics, circuit analysis, Young’s modulus.