Waves (Physics A level) - Course notes

Free A-Level Physics Course Notes: Waves

These free A-level Physics Waves notes provide a clear, structured overview of one of the most important and exam-heavy topics in the course. Written by an experienced A-level Physics teacher, they focus on building strong conceptual understanding while highlighting key exam techniques and common pitfalls.

The notes cover all core wave content, including wave types and properties, diffraction, superposition, Young’s double-slit fringes, and diffraction gratings. You’ll also find clear explanations of the speed of sound, light waves, refraction, Snell’s law, total internal reflection, and the physics of optical fibres.

Ideal for revision, lesson support, or catching up on missed content, these notes use clear explanations, diagrams, definitions, and equations laid out exactly as exam boards expect. Perfect for students aiming for top grades (A–A*) and teachers looking for reliable classroom or homework resources.

Topics included:

• Types of waves and wave behaviour
• Diffraction and superposition
• Young’s double-slit interference and fringe spacing
• Diffraction gratings
• Speed of sound
• Light waves and refraction
• Snell’s law
• Total internal reflection
• Optical fibres

Download for free and strengthen your understanding of A-level Waves with confidence.