Ball and ring experiment | Online Resources

Thermal expansion sphere and ring demonstrations

Physics Xplain on Instagram: "Walter Lewin uses the classic ball-and-ring experiment to explain thermal expansion, the physical phenomenon in which materials change size when their temperature changes. When an object is heated, the particles inside it gain energy and begin to vibrate more vigorously, increasing the average distance between them. As a result, the object expands. In the experiment, the metal ball fits easily through the ring at room temperature, but after heating, the same ball no