OCR • Physics A

Summary notes for topic 6.4 Nuclear and particle physics covering the alpha particle scattering experiment, isotopes, fundamental forces, antiparticles, hadrons, leptons, quarks, beta decay, alpha decay, gamma decay, radiation, half-life, activity, decay constant, carbon dating, Einstein’s mass-energy equation, binding energy, fission and fusion. Notes feature definitions, highlighted key terms, explanations, diagrams and equation break downs.

Summary notes for topic 6.5 Medical physics covering X-rays, X-ray scattering, gamma camera, CAT scans, PET scans, Ultrasound, Doppler imaging, acoustic impedance. Notes feature definitions, highlighted key terms, explanations, diagrams and equation break downs.

Summary notes for topic 3.2 Forces in action covering force, mass, weight, acceleration, centre of mass, free body diagrams, drag, terminal velocity, moments, couples, torques, triangle of forces, density, pressure, upthrust and Archimedes’ principle. Notes contain definitions, highlighted key terms, explanations, diagrams and break downs of equations

Summary notes for topic 3.3 Work, energy and power covering equations, energy transfers, efficiency and types of energy . Notes contain definitions, highlighted key terms, explanations, diagrams and break downs of equations

Summary notes for topic 3.5 Newton’s laws of motion and momentum covering Newton’s 3 laws, momentum, elastic and in elastic collisions, impulse and momentum in 2D. Notes contain definitions, highlighted key terms, explanations, diagrams and break downs of equations

Summary notes for topic 3.4 Materials covering springs, elastic potential energy, force extension graphs, tensile stress and strain and Young modulus. Notes contain definitions, highlighted key terms, explanations, diagrams and break downs of equations

Summary notes for topic 4.2 Energy, power and resistance covering potential difference, electromotive force, resistance, circuit symbols, the electron gun, Ohm’s law, I-V characteristics, resistivity, thermistors, LDRs, power and paying for electricity . Notes include definitions, highlighted key terms, diagrams, explanations and break downs of equations

Summary notes for the second half of topic 4.4 waves (chapter 12 in the textbook) covering superposition, interference, Young’s double slit experiment, stationary waves and harmonics. Notes include definitions, highlighted key points, diagrams, explanations and break downs of equations

Summary notes for topic 4.3 Electrical circuits including Kirchhoff’s Second Law, series and parallel circuits, internal resistance, potential divider circuits, combining resistors, and sensing circuits. Notes include definitions, highlighted key terms, diagrams, explanations and break downs of equations

Summary notes for the first half of topic 4.4 Waves. Covering progressive waves, electromagnetic spectrum, polarisation, key terms, total internal reflection, refractive index, Snell’s law, optical fibres and diffraction. Notes includes definitions, highlighted key terms, diagrams, explanations and break downs of equations