Sound Waves - SS3 Physics Past Questions and Answers - page 4

Acoustic levitation is a method of suspending small objects in mid-air by using sound waves that create regions of low pressure in which objects can be trapped and held in place.

Sound waves have been applicable to modern medicine through technologies like Ultrasound, which is a type of sound wave with a frequency above the range of human hearing. It is commonly used in medical imaging to produce images of internal organs and tissues, as well as to detect and monitor pregnancy.