D. Microwaves. SolutionShow Solution. Answer: Sound waves in air (and any fluid medium) are longitudinal waves because particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves. Sound waves are longitudinal waves that travel through a medium like air or water. In longitudinal waves, the motion of the individual particles of the medium is in a direction that is parallel to the direction of energy transport. Sound waves: Speed of sound in air increases with the temperature. This is exactly how a sound wave propagates. D. Sound is a mechanical, longitudinal wave. 150 Likes 1) Select the correct s As particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves, so the sound waves in air ( o r a n y f l u i d m e d i u m) are called longitudinal. Therefore, sound waves are called a . Open in App. So, sound waves are longitudinal. Sound waves are a longitudinal wave - a compression and rarefaction. Give reason for the following : Why sound waves are called mechanical waves ? Share . Solution. Still have questions? Longitudinal wave: When oscillation is created parallel to the . The voice box responsible for the production of sound in human beings is located in the throat. Hence, sound waves . The direction of particles of the medium vibrates parallel to the direction of the propagation of disturbance. The vibration of the medium that travels parallel to the direction of the wave or along in the direction of the wave, is called a longitudinal wave. … In both air and water, sound waves travel in a straight line. Sound travels as a longitudinal wave through a material medium. 2020-2021 cbse chapter 12 class9 ncert science sound. Therefore a sound is called longitudinal waves. In the waves the individual particles of the medium move in a direction parallel to the direction of the propagation of the distirbance. Yes, the sound waves are longitudinal in nature. by vibrations that produce waves of energy that move through matter . Start studying Sound Waves. The vibration of the medium that travels along or parallels the direction of the wave is called a longitudinal wave. Sound waves are longitudinal in nature. Water waves are an example of waves that involve a combination of both longitudinal and transverse motions. In longitudinal waves , the vibrations are parallel to the direction of wave travel. The vibration of medium that travel along or parallel to the direction of wave is called a longitudinal wave. Answer (1 of 18): Waves are categorized as either longitudinal or transverse. Answer : The vibration of the medium that travels parallel to the direction of the wave or along in the direction of the wave, is called a longitudinal wave. The particles do not move from one place to another but they simply oscillate back and forth about their position of rest. But in case of a light wave or traveling waves on a string, the variable governed by the wave equation is the disturbance itself. The vibration of medium that travel along or parallel to the direction of wave is called a longitudinal wave. . Sound waves can only travel in space if enough particles are around to transmit the energy in the wave from the source to the listener. Sound waves force the medium particles to vibrate. 1 1 Answer; 35 Views; 2 Followers ; 2; Answer. (Water waves are a mix of transverse and longitudinal waves.) The answer to the question depends on what the definition of a sound wave is. Therefore, a sound wave is called a longitudinal wave. Solving time: 3 mins. In Sound waves, the amplitude of the wave is the difference between the maximum pressure caused by the wave and the pressure of the undisturbed air. When we think about sound, we often think about how loud it is (amplitude, or intensity) and its pitch (frequency). Hence, a sound wave is called a longitudinal wave. Hence, a sound wave is called a longitudinal wave. The speed of sound Sonic booms When an airplane flies at or above the speed of sound, Q.5. Therefore, the sound waves are often called longitudinal waves. the molecules are being pressed together as the sound waves . In a sound wave, the particles of the medium vibrate in the direction parallel to the direction of propagation of disturbances. Solution The vibration of medium that travel along or parallel to the direction of wave is called a longitudinal wave. Complete step by step answer: Basically Sound wave is a mechanical disturbance. Verified by Toppr. Sound waves propagate through a medium because of the interaction of the particles present in that medium. Login; Register In a sound wave, the particles of the medium vibrate in the direction parallel to the direction of the propagation of disturbance. G - what am I Given? Hard. Answers (1) Longitudinal waves are formed When oscillation is created parallel to the disturbance of the particles of the medium in the direction of propagation and since the sound waves also create oscillations in the particles of the medium parallel to the disturbance in the direction of propagation. 150 Likes Didn't understand the solution? when air molecules vibrate and move in a pattern called waves, or sound waves. Click here to get an answer to your question ️ Why sound wave is called a longitudinal wave? Water waves shake energy over the surface of the sea, while sound waves thump energy through the body of the air. Keshav Kumar answered this. Disturbance is the to and fro motion of the particles. Why is sound wave called a longitudinal wave? Solution: The vibration of medium that travel along or parallel to the direction of wave is called a longitudinal wave. Answer: False. In water waves when a water molecule absorbs energy it can only move upward toward the less resistance of the air, since water cannot be compressed. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Sound waves in air (and any fluid medium) are longitudinal waves because particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves. In transverse waves , the vibrations are at right angles to the direction of wave travel. Mechanical longitudinal waves are also called compressional or compression waves, because they produce compression and rarefaction when traveling through a medium, and pressure . Find more answers Ask your question New questions in Science why were some forests The most common type of wave that we are visually familiar with is transverse. Hence, these waves are known as mechanical waves. View solution > Sound can be . Verified by Toppr. As a wave travels through the waver, the particles travel in clockwise circles. Case 2: (2)The individual particlesof the medium move in a direction parallel tothe direction of propagation of thedisturbance. Question 3. Solution. The sound wave is called a longitudinal wave because it is produced by compressions and rarefactions in the air. The particles do not move from one place to another but they simply oscillate back and forth about their position of rest. Longitudinal Waves: When the direction of disturbance in the medium and the direction of propagation of wave are in the same direction the wave is called the longitudinal wave. This would be more clear by taking the definition of longitudinal wave into account. Longitudinal sound waves are used in ultrasound to do prenatal screening. Mechanical waves cause oscillations of particles in a solid, liquid or gas and must have a medium to travel through. Sound waves are called longitudinal waves because the particles of the medium by which the sound is transported in air or in any fluid medium, it vibrates parallel to the direction in which the sound wave moves. The vibration of the medium that travels along or parallel to the direction of the wave is called a longitudinal wave. - Sound is a longitudinal wave, but light is a transverse wave. heart outlined. Longitudnal waves travel in the form of compression and rarefactions. Short Answer: Both light propagation and sound propagation (in air or water) are governed by the same wave equation. Why is sound wave called a longitudinal wave? The direction of particles of the medium vibrates parallel to the direction of the propagation of disturbance. Answer (1 of 3): Because the air molecules are free to move any direction when they absorb energy, since air is compressible. Longitudinal waves. That's a questions about semantics not physics. Why is sound wave called a longitudinal wave?AnswerIn longitudinal waves, particles of wave move in direction of propagation of waves.In a sound wave, the particles of the medium vibrate back and forth in the same direction of the disturbance.Therefore, sound wave is called a longitudinal wave. Usually the longitudinal waves in a solid are called p-waves while the transverse waves in a solid are called s-waves. In a sound wave, the particles of the medium vibrate in the direction parallel to the direction of propagation of disturbances. Some sounds are pleasant and musical, whilst other waves are. Sound waves are not transverse waves because their oscillations are parallel to the direction of the energy transport; however sound waves can become transverse waves under very specific circumstances. Question 4. Answer : The vibration of the medium that travels parallel to the direction of the wave or along in the direction of the wave, is called a longitudinal wave. The physics of waves helps to explain the process by which sound is produced, travels, and is received. It travels through a medium from one point, A, to another point, B. Therefore, a sound wave is called a longitudinal wave. On the other hand, light waves are electromagnetic ones which can indeed travel without the help of matter. Best Answer. 2; NCERT Solutions for Class 9 Science Chapter 12 Important NCERT Questions Sound NCERT Books for Session 2020-2021 CBSE Board and UP Board Exercises Questions Page No-174 Questions No-4. B. Transverse waves. Therefore, sound waves are called a longitudinal wave. B) single speed. Ultrasound waves. The radius of the circles decreases as the depth into the water increases. Transverse waves, or shear waves, travel at slower speeds than longitudinal waves, and transverse sound waves can only be created in solids. Refraction makes it possible for us to have optical instruments such as magnifying glasses, lenses and prisms. A mechanical wave, such as sound, actually imparts energy to the molecules of the medium through which it travels. When the sound wave travels through the air, its particles vibrate parallel to the direction of propagation. These waves can vary in frequency, and by their complexity. How is sound created? Thus leading to a transverse wave. A vibrating string can create longitudinal waves as depicted in the animation below. Particles of the fluid (i.e., air) vibrate back and forth in the direction that the sound wave is moving. Also, you can clean teeth using ultrasound, knock out small cancers, and obliterate kidney stones, all using ultrasound, which is sounds at a frequency in excess of 20,000 Hz. The particles do not move fromone place to another but they simply oscillateback and forth about their position of rest.This is exactly how a sound wave propagates;hence . Ans. The molecules of the medium vibrate, striking their neighbors, which in turn vibrate. In the case of a sound wave, the variable governed by the wave . A detector of pressure at any location in the medium would detect . Therefore, a sound wave is called a longitudinal wave. Waves can be longitudinal, transverse, or a mix of the two. Hint: Sound waves in all (and any fluid medium) use longitudinal waves because particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves. This back-and-forth longitudinal motion creates a pattern of compressions (high pressure regions) and rarefactions (low pressure regions). In which sound energy propagates from one place to another . This is known as longitudinal wave. 0 Explanation: If you have a look at a loudspeaker or your eardrum you'll see this idea. Frequency of a wave is the number of vibrations completed by it in one second. In sound waves the individual particles of the medium move in a direction parallel to the direction of propagation of the disturbance. This chain reaction results in the acoustic energy traveling through the medium. The animation at right shows a water wave travelling from left to right in a region . Sound is a mechanical wave. Since sound wave creates oscillation in the particles of the medium parallel to the disturbance in the direction of propagation, thus sound waves are called longitudinal wave. Longitudinal waves are waves in which the vibration of the medium is parallel ("along") to the direction the wave travels and displacement of the medium is in the same (or opposite) direction of the wave propagation. Sound waves are transverse in nature. The water molecule ca. Transverse waves (such as water waves, vibrating strings, electromagnetic waves, etc…) are distinguished by displacement perpendicular to th. In other words, sound pushes and pulls the air back and forth where water shakes it up and down. Why sound wave is a longitudinal wave? In a sound wave, the particles of the medium vibrate in the direction parallel to the direction of propagation of disturbances. Sound waves. Ask a Tutor They're also called longitudinal waves because the air vibrates along the same direction as the wave . Hard. False. apsiganocj and 484 more users found this answer helpful. Physics Sound Sound waves 1 Answer Gió Aug 7, 2015 Because they propagate through a material medium in form of alternate regions of COMPRESSION (high pressure) and RAREFACTION (low pressure) of the material composing the medium. Ultrasound waves have a frequency above 20 000 Hz, other than that they are like sound waves in. Hence, a sound wave is called a longitudinal wave. Sound wave is called longitudinal wave because it is produced by compressions and rarefactions in the air. A longitudinal wave can be created in a slinky if the slinky is stretched out in a horizontal direction and the first coils of the slinky are vibrated horizontally. The direction of particles of the medium vibrates parallel to the direction of the propagation of disturbance. In a sound wave, the particles of the medium vibrate in the direction parallel to the direction of propagation of disturbances. Ultrasound waves are longitudinal waves just like sound waves, and they cannot pass through a vacuum. The waves in which particles of the medium move in a direction parallel to the . When a sound travels through a medium, the particles in the medium simply vibrate about their mean position and they do not travel from one place to other. Correct option is C) Sound waves are characterized by the motion of particles in the medium and . C. Mechanical waves. Also, it cannot travel through a vacuum and requires a medium (solid, liquid, or gas) to travel. The sound waves are the best example of a longitudinal wave and are produced by vibrating or disturbing the motion of the particles that travel through a conductive medium. When we speak, the sound wave propagates through the air medium and reaches the audience. Ans: A sound wave is called a longitudinal wave because compressions and rarefactions in the air produce it. because longitudnal waves moves with the phenomenan of compression and rarefaction,and same happens with sound when it travel through liquids and gases,thus sound is a longitudnal waves.and also the movement of the sound wave remains parallel to the movement of the particles of the medium which is a characteristics . Sound waves are compression waves. Answer of Why sound wave is called longitudinal wave . As is true of all types of waves, specific behaviors, properties, and . Hence, a sound wave is called a longitudinal wave. Sound waves traveling through a fluid such as air travel as longitudinal waves. Sound is a wave that is produced by objects that are vibrating. The air particles vibrate parallel to the direction of propagation. both of them can excite longitudinal waves in the air which will be perceived as sound. Longitudinal waves are formed When oscillation is created parallel to the disturbance of the particles of the medium in the direction of propagation and since the sound waves also create oscillations in the particles of the medium parallel to the disturbance in the direction of propagation. A sound wave is a wave in which particles vibrate in the direction parallel to the direction of the wave. Atmospheric Refraction. Mechanical wave- Waves that require a medium ( solid, liquid or gas) to travel are known as mechanical waves. The key distinction is frequency; sound waves are measured in kilohertz, whereas water waves are measured in seconds. In a sound wave, the particles of the medium vibrate in the direction parallel to the direction of propagation of disturbances. 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