Module 4: Electrons, waves and photons (H556)

This pack of notes provides an in-depth summary of the OCR Physics A A-Level Module 4: Electrons, Waves and Photons, written by an Oxford University offer holder who achieved A*A*A* at A-Levels, including an A* in Physics. This pack contains all of the examinable content from Module 4, including diagrams to aid learning. This includes a summary of Module 2: Foundations of Physics.

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