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Unformatted text preview: What Is a Sound Wave? Description: Conceptual questions about sound waves including the properties: frequency, wavelength, loudness, pitch, and timbre. Learning Goal: To understand the nature of a sound wave, including its properties: frequency, wave- length, loudness, pitch, and timbre. Sound is a phenomenon that we experience constantly in our everyday life. Therefore, it is important to understand the physical nature of a sound wave and its properties to correct common misconceptions about sound propagation. Most generally, a sound wave is a longitudinal wave that propagates in a medium (i.e., air). The par- ticles in the medium oscillate back along the direction of motion of the wave. This displacement of the particles generates a sequence of compressions and rarefactions of the medium. Thus, a sound wave can also be described in terms of pressure variations that travel through the medium. The pressure fluctuates at the same frequency with which the particles positions oscillate....
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- Spring '10