Understand how to identify amplitude and frequency of waves and features of transverse and longitudinal waves with this guide for KS3 physics students aged 11-14 from BBC Bitesize.

Sound is a longitudinal wave which consists of compressions and rarefactions travelling through a medium. Sound wave can be described by five characteristics: Wavelength, Amplitude, Time-Period ...

Sunday Times News: Sound is propagated in the form of longitudinal waves. When sound travels from one medium to another, both its velocity and wavelength undergo changes ...

Physicists discovered special transverse sound wave Date: December 7, 2021 Source: City University of Hong Kong Summary: A research team has discovered a new type of sound wave: the airborne sound ...

More information: Pan Liu et al, A stable all-solid-state continuous-wave single-longitudinal-mode Nd:YVO 4 laser at 1064 nm based on the molecular iodine absorption, Optics & Laser Technology (2025).

The wavelength of a longitudinal wave could also be measured from the centre of a rarefaction to the centre of the next rarefaction. Frequency – the number of vibrations in one second.