The AQA A-level Physics Paper 1 (June 2023) assesses core physics principles, including particle interactions, quark composition, and electromagnetic wave properties. Key topics include calculations of rest energy, kinetic energy, and resistivity, along with applications of Newtonian mechanics and circuit theory. Questions emphasize practical problem-solving with Porro prisms, Young modulus, and simple harmonic motion analysis. Further exploration covers light diffraction, wave interference, and the physics of jets and pendulums, focusing on experimental validation and theoretical interpretation. Keywords: AQA Physics, quark structure, resistivity, SHM, diffraction, Porro prism, Young modulus, particle decay.