Sound Origin of Sound Nature of Sound in Air Media that Transmit Sound Speed of Sound in Air Refraction Energy in Sound Waves Forced Vibrations Natural Frequency Resonance…
Chapter 26 Sound & Music Sound … ...a longitudinal wave in air caused by a vibrating object Origin of Sound Infrasonic frequencies < 20 Hz Ultrasonic frequencies…
Refraction -Refraction of Sound -Refraction of Light Refraction Is it harder to push a lawn-mower on concrete or grass? Is it harder to walk through a pool full of water…