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 is the range of human hearing in Hertz?

Explain how ultrasound waves behave when they reach the boundary between two media with different densities.

What equation is used to calculate the distance traveled by an ultrasound wave?

How is the actual distance to a crack determined using ultrasound?

What are some medical uses of very high frequency ultrasound waves?