https://www.khanacademy.org/science/mh-grade-8-science/x0f256b8de9c7cf34:sound/x0f256b8de9c7cf34:sound-production-and-propogation/e/production-and-propagation-of-sound 2026-03-11T03:40:40.560880416Z Production and Propagation of sound Let's solve some questions! vibhor exercise https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:waves-sound-and-physical-optics/x0e2f5a2c:wave-properties/e/wave-characteristics-ap1 2026-04-07T23:36:17.218592739Z Properties of transverse and longitudinal waves Practice identifying the characteristics of a transverse or longitudinal wave such as the wavelength, crest, and areas of compression. April Russell exercise