67pgs/30Q/soln/4labs + videos PPTX "SOUND" is 3 pptx: Sound: Longitudinal waves, speed of sound, standing wave resonance, 3 types of tubes and their resonances, wave equation, vibrating strings, beats, doppler effect. 20Q/soln Hearing: Mechanism of hearing, resonance, dangers to hearing, range of hearing, How to measure Loudness in dBs, and frequencies of sounds. 10Q/soln Music: Woodwinds, strings, percussion instruments and resonant harmonics. Effects of additional harmonics to fundamentals.