At the end of this activity, students should be able to: û define an acoustic wave, û calculate the wavelength of an acoustic wave given its speed and frequency, û explain why the speed of sound depends on the medium in which it propagates and understand why, when the medium is air, it also depends on the temperature, û describe the phenomena of echo, reverberation, and acoustic resonance, û describe the wavefront of an object moving at supersonic speed.

Originally released by Learnetic, 2016.