Αποτελέσματα Αναζήτησης
Refraction is the bending of waves when they enter a medium where their speed is different. Refraction is not so important a phenomenon with sound as it is with light where it is responsible for image formation by lenses, the eye, cameras, etc.
When a sound wave meets a boundary it may be: reflected. refracted. absorbed. Whether a sound wave is reflected, refracted, or absorbed depends on the densities of the materials either side of...
The reflection, refraction and diffraction of sound waves and a sound wave model. (a) Reflection of sound waves. When sound waves meet a barrier between two different media they can be reflected just like any other wave (diagram of wavefronts on the right).
Refraction of Sound. Balloons filled with helium, CO 2, or SF 6 act as diverging and converging lenses, respectively. What it shows: A balloon, filled with a gas different from air, will refract sound waves. A gas denser than air turns the balloon into a converging lens and a lighter gas makes it a diverging lens.
After many vibrations, a series of compressions and rarefactions moves out from the speaker as a sound wave. The red graph shows the gauge pressure of the air versus the distance from the speaker. Pressures vary only slightly from atmospheric pressure for ordinary sounds.
1. Scattering refers to the alteration in sound path produced by the interaction of a sound ‘ray’ and an object. Scattering implies that the incident sound wave front is broken into multiple waves by the scatterer.
Explain the difference between sound and hearing; Describe sound as a wave; List the equations used to model sound waves; Describe compression and rarefactions as they relate to sound
