https://www.khanacademy.org/science/bmc-grade-9-science/x345505a97fc4a662:study-of-sound/x345505a97fc4a662:characteristics-of-sound/v/speed-of-sound-in 2025-05-24T09:03:55.951085194Z Speed of sound Let's learn how to calculate speed of sound. Dubverse video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Speed of sound Let's learn how to calculate speed of sound. https://cdn.kastatic.org/ka-youtube-converted/32ZVNjNT3zs.mp4/32ZVNjNT3zs.mp4 225 Longitudinal waves & speed of sound 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 https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:waves-sound-and-physical-optics/x0e2f5a2c:wave-properties/e/transverse-and-longitudinal-wave-exercises-ap1 2026-04-07T23:55:07.30621384Z Identifying transverse and longitudinal waves Practice identifying representations of transverse and longitudinal waves April Russell exercise https://www.khanacademy.org/science/in-in-class9th-physics-india/in-in-sound-india/in-in-longitudinal-waves-speed-of-sound/v/after-how-long-ram-hears-a-splash 2020-06-23T07:22:43Z After how long, Ram hears a splash? Ram drops his phone from the bridge. Let's calculate how long it takes him to hear the sound of the splash.  Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/5bx_jzktGocnFopMj8bo5cbzvo75SdM7ONsbsAsM2hiFgX-0iTbj1WTKWz13Hx7rBD1Ome2t_8UiFhkkW_loQxWZuA After how long, Ram hears a splash? Ram drops his phone from the bridge. Let's calculate how long it takes him to hear the sound of the splash.  https://cdn.kastatic.org/ka-youtube-converted/3fzGBo-zvkc.mp4/3fzGBo-zvkc.mp4 690 Longitudinal waves & speed of sound https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:waves-sound-and-physical-optics/x0e2f5a2c:wave-properties/e/numerical-wave-equation-ap1 2024-06-28T19:56:50.217380579Z Calculating wave speed, frequency, and wavelength Practice using the wave speed equation for word problems to find the frequency and wavelength of a wave.  April Russell exercise