Critical Angle is an interactive HTML5 Canvas simulation demonstrating the critical angle and total internal reflection for GCSE Physics (Waves topic, 4.6.2). Light travels upward from a glass block (n = 1.50) toward the boundary with air. A single draggable angle slider lets pupils vary the angle of incidence in the glass and watch the […]
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Refraction and Reflection – Ray Diagrams Simulation Description A light ray travels down through air and crosses a boundary into a denser medium, bending toward the normal as it does. The simulation draws the incident ray (blue), the refracted ray (its colour matching the chosen medium), and a faint reflected ray (green), with angle arcs
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Superposition & Standing Waves Simulation — ClassAdapt What the simulation shows Two animated wave tubes float in 3D space at different depths, with a third white resultant tube running between them. Students can orbit the camera, zoom, and watch the waves update in real time as they adjust the controls. Superposition tab Wave 1 (cyan)
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Electromagnetic Spectrum Simulation This interactive simulation lets pupils explore the full electromagnetic spectrum by dragging a marker across a colour-coded spectrum bar spanning radio waves to gamma rays. The bar is rendered on a logarithmic scale — matching how physicists represent the spectrum — so the vast range from 1 MHz to 10²² Hz is
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Echo & Sound Reflection Simulation This interactive simulation shows how sound waves travel from a source, strike a reflective surface, and return as an echo. Pupils can switch between four illustrated environments — a cliff face, a city building, a canyon, and an underwater SONAR scene — each rendered with atmospheric depth. Pressing ▶ Send
