Transmission of Sound.pdf

School
Tukkar School Of Nurisng , Belgaum*
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Course
A EN 248
Pages
5
Upload Date
Feb 11, 2024
Uploaded by BaronArtQuetzal44 on coursehero.com
Transmission of Sound Objective In this lesson, you will In this lesson, you will explore the transmission of sound waves and understand how they interact with the medium through which they travel. Transmission of Sound: Sound waves are mechanical waves since particles in the air vibrate back and forth parallel to the motion of the waves. Explanation: Sound waves are classified as mechanical waves because they require a medium (solid, liquid, or gas) to propagate. In the case of air, which is a common medium for sound transmission, the particles in the air vibrate in a direction parallel to the motion of the sound wave. Transmission of Sound In this lesson, you will explore the transmission of sound wa e Sound waves are since particles in the air vibrate back and forth In this lesson, you will explore the transmission of sound wa to the motion of the waves. / | 3w1": ~CLQH5fiMwF!f' ' % 'JL!U' "Jbinihzljh | SR In this lesson, you will explore the transmission of sou i ' In this lesson, you will explore the transmission of sou In this lesson, you will explore the transmission of sound waves an e Like all longitudinal waves, sound waves have regions of and In this lesson, you will explore the transmission of sound wa . Waves are produced when a spring toy is placed on a flat surface in a straight line and pushed forward from one end. In the waves produced, the regions where the coils come In this lesson, you will explore the transmissiol In this lesson, you will explore the trans are compressions, and the regions where they are apart are rarefactions. In this lesson, you will explore the transmissior The compression regions have a higher compared to the rarefaction regions because of In this lesson, you will explore the tr: their higher . Since sound waves also contain these two regions of varying pressure, they are In this lesson, you will explore the transmissiol also waves. EXAMPLE: Before a bell is struck, the pressure of the air around it is stable or in In this lesson, you will explore the transmission of sound waves . When the bell is struck by a clapper, the bell vibrates. While the forward In this lesson, you will explore the fri movement of the surface of the bell the air particles around it at a high velocity, its In this lesson, you will explore th backward movement the particles back again, thus creating regions of high and low air pressure.
In this lesson, you will explore the transmis Sound waves always require a in which to travel; therefore, they are mechanical waves. In this lesson, you will explore the transmission of EXAMPLE: You can verify that sound waves can't travel through a by performing In this lesson, you will explore the transmis this experiment, using our bell example again. Place an electric bell in a In this lesson, you will transparent glass jar and then suck all the out of the jar with a suction pump. Now switch In this lesson, you will explore on the bell to make it . You will see the little hammer banging on the bell, but you won't In this lesson, you will explore the tr: hear any In this lesson, you will explore the trans When we hear sound from a speaker, the chain of compressed and rarefied pulses from the Vv speaker through the air and reaches our ears. Our ears have , Which then detect these fluctuations in the air pressure and vibrate at the same frequency as the source. These vibrations are In this lesson, you will explore the tn | transmitted to our in the form of nerve impulses. This is how we hear and make sense of sound. In this lesson, you will explore the transmission of In this lesson, you will explore the tr: Human ears can detect sound waves that have ranging from 20 to 20,000 In this lesson, you will explore the transmission of sound waves Sound frequencies below this range are called and those above it are called In this lesson, you will explore the transmission of sound waves and ul Speed of Sound Sound travels more """ than light. In this lesson, you will explore thi While the speed of is approximately 3.0 x 102 meters/second, sound travels at about In this lesson, you will exp meters/second under normal atmospheric pressure and a temperature of 20°C. The In this lesson, you will explore the transmission of sot speed of light is nearly times faster than the speed of sound. You may not notice the "slowness" of sound when you hear it coming from sources around you. But you would definitely In this lesson, you will explore the tri experience it if you hear your voice over a In this lesson, you will explore the transmission of large canyon, for example. If it takes 3.0 for the echo to go out and come back to you (1.5 seconds In this lesson, you will each way), the wall is about meters away (343 m/s x 1.5 second). As an example, bats use this same technique, called In this lesson, you will explore the transmission of sound waves and understz , to estimate how far away objects are. They have highly evolved sense organs that allow them to do so.
Sonar In this lesson, you will Sonar is a technique used at to detect other vessels and icebergs. In this lesson, you will explore the trans In this lesson, you will explore the transmission of sot e The word is an acronym for "sound navigation and ranging." use sonar, as do deep-sea divers, who carry handheld sonar equipment. In this lesson, you will explore the transmission of sound waves Sonar equipment usually has both a sound and a sound In this lesson, you will explore the transmission of sot In this lesson, you will explore th . When the In this lesson, you will explore In this lesson, yi . The transmitter creates a sound pulse called a In this lesson, you will explore the transmission of soi ping hits an object, the sound is back. The receiver In this lesson, you will explore the reflected ping. A timer records the elapsed between creating the ping and picking up its reflection. Based on the speed of sound in the medium—in this case, In this lesson, you will explore the transmis seawater—the between the equipment and the object is In this lesson, you will explore the transmission of sot Sound is a pressure wave that travels through a medium. The particles of the medium vibrate, interact with In this lesson, you will explore the transmission of other particles, and then the energy in the form of sound waves. The speed of a sound In this lesson, you will explore the transmis wave is the speed at which the is passed on from one wave to the other. The speed of sound can be measured using ' LI ) In this lesson, you will explore the tr: | A d the general definition of , Domsisd = L__. At In this lesson, you will explore the transmission of sot ( ) - d where speed is the of the velocity vector. Universal Wave Equation In this lesson, you will explore the transmissior The speed of sound can also be related to its and frequency. Recall that the magnitude of the velocity (v) of a wave is the product of its wavelength (A) and frequency (f). o : In this les i = Af
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