Ultrasound _ GCSE Physics

The video tutorial explains the range of human hearing and introduces ultrasound as sound waves with frequencies above 20,000 Hertz. It describes how ultrasound is used in industry to detect material flaws by calculating the distance traveled by the waves using a simple equation. The tutorial also covers medical applications of ultrasound, such as prenatal scanning and breaking up kidney stones, highlighting its usefulness in reflecting off different tissues to create images.

What new insight or understanding did you gain from this video?