Sound Wave Diagram
The following diagram illustrates the signal flow through a typical sound system, as described in this article. A wave has a speed of 30 m/s and a wavelength of 3 meters. Refraction is the change in direction of a wave, caused by the change in the wave's speed. Those waves bounce off nearby objects, and some of them reflect back to the object that made the noise. A sound wave is the pattern of disturbance caused by the movement of energy traveling through a medium (such as air, water, or any other liquid or solid matter) as it propagates away from the source of the sound. Draw and lable a diagram of both a transverse wave and a longitudinal wave. A wavelength is the length between one crest the other or from one trough to the other. This is actually a measure of intensity, which relates to how much energy the pressure wave has. no reflection, whereas bathrooms usually have sound reflective surfaces and therefore very low sound absorption properties, resulting in multiple reflections in the room and a diffused sound field. Sometimes, loud noise can cause pain to people. Sound Waves: The Symphony of Physics is broadcast on BBC Four. Describe an experiment to demonstrate the interference of sound. Wave Editor is a fast and easy digital audio editing software for Windows. It doesn't. A sudden clap or bang sends out a single sharp pulse of sound called a shock wave. What is the name given to the points on the string marked (i) X, (ii) Y?. A sound waves cannot be reflected B sound waves are electromagnetic C sound waves are longitudinal D sound waves are transverse (b) A microphone is connected to a data logger, which displays each sound wave as a graph. They form a picture that can be interpreted by the doctor. Physics (Grade 8): High School Learning Sound | Characteristics Of Sound | Examples & Diagrams | Lecture 10 - Amplitude of Sound - Characteristics of Sound- Amplitude, Frequency, Wavelength, Pitch. Sound that travels through the outer ear impacts on the eardrum, and causes it to vibrate. Sound waves Sound is a compression wave. A purely subjective, but unduly restrictive, definition of sound is also possible, as that which is perceived by the ear. Although there are fundamental differences between the types of waves, the water comparison can help us to visualize sound waves. View and Download Ibanez Sound Wave 65 owner's manual online. Sound Waves: The Symphony of Physics is broadcast on BBC Four. Sounds hit the eardrum, making it move. The height of the wave (amplitude) and the closeness of the waves to each other (frequency) is how we measure volume and pitch. Sound, a form of energy, is all around us. Pitch is the quality of a sound (high or low) and depends on the speed of the vibrations. Sound waves can be described by period, wavelength, amplitude, and for periodic waves we can include frequency. In liquids, the speed of sound is. (b) On the graph paper shown in Figure Z, draw a trace of the sound wave which has a larger amplitude than that shown in Figure X. no reflection, whereas bathrooms usually have sound reflective surfaces and therefore very low sound absorption properties, resulting in multiple reflections in the room and a diffused sound field. In order to translate an electrical signal into an audible sound, speakers contain an electromagnet: a metal coil which creates a magnetic field when an electric current. For waves on a string, we found Newton’s laws applied to one bit of string gave a differential wave equation, ∂ 2 y ∂ x 2 = 1 v 2 ∂ 2 y ∂ t 2. The answer depends upon whether sound is defined as a physical wave or the perception of that wave by the ear and brain of a living creature. Loudness of sound is measured in decibels (dB). Assume that waves are propagating in a uniform medium. Play along with guitar, ukulele, or piano with interactive chords and diagrams. Introduction to Amplifiers. 5 seconds, and the frequency of this wave is 2 cycles per second or 2 Hertz (Hz). In air the displacement wave amplitude may range from 10-7 mm to a few mm per second. The sound waves in the diagram show the different frequencies for high and low notes. Examples: sound waves, waves due to the horizontal motion of slinky etc. This is how many noise-cancellation devices work. Well you're in luck, because here they come. This nerve transmits information to the temporal lobe of the brain, where it is registered as sound. Sound Waves is an explicit teaching program and is fully resourced with Teacher Books, Student Books, Sound Waves Online and additional digital options for non-textbook schools. Sound, a form of energy, is all around us. furthermore since sound waves are just air pressure variations some some of the energy of the wave is lost to heat ''friction'' but remember most of the friction is between the air and solid surfaces rather than between the air molecules itself. Sounds travel as waves of vibrations. As the energy within the sound wave is passed to the material, it will cause oscillation of the particles of that material. In air the displacement wave amplitude may range from 10-7 mm to a few mm per second. To understand compression and rarefaction, you must know that there are two types of waves called Transverse waves and Longitudinal waves. ) The wave shown here represents a constant tone at a set frequency. So instead of a curvy snake wave, sound is a pressure wave, which causes each piece of the air to be at either higher-than-normal pressure or lower-than-normal pressure. Both typed of waves have amplitude and wavelength, and they can be plotted as lines on the diagram in exactly the same way. This site uses cookies. Diffraction is when a wave goes through a small hole and has a flared out geometric shadow of the slit. Thousands of new, high-quality pictures added every day. When an ultrasonic wave propagates through a medium, the molecules in that medium vibrate over very short distance in a direction parallel to the longitudinal wave. I have to make this assignment entirely from scratch with a UI and everything so basically making a. Sound waves travel through air, water, and solid objects as vibrations. The wavelength. Velocity: It takes time for a wave to go from one place to another. The sound waves are at too high of a pitch for the human ear to hear. Repeat the experiment several times and take the average value of the time intervals recorded to calculate the average speed of sound. The Bose® Wave® music system IV includes a CD player, an AM/FM radio tuner and an input in the back for other sources. What is sound? And how does it travel? And what is this Doppler Effect that we've heard so much about?. Frequency is determined by how fast the sound producing objects vibrates. (a) Compare the properties of the two sound waves necessary to produce complete cancellation of the two waves that reach the ear. The bigger the waves, the more energy they carry, and the louder they sound. Electromagnetic waves are vibrations of magnetic and electric fields. The vocal tract is a resonator that, in normal speech, can assist the radiation of some frequency bands, but not others. 425 second after it was sent from the ship. What is a wave? We use the word wave in everyday conversation to refer to ocean, light, sound, or earthquake waves. Sound - Sound - Refraction: Diffraction involves the bending or spreading out of a sound wave in a single medium, in which the speed of sound is constant. In your Student Answer Booklet, copy the wave diagram and label the wavelength of the wave. A wavelength is the length between one crest the other or from one trough to the other. More dB = more Volume. Sound waves are longitudinal waves. Some vibrations cause air to move, to create sound waves that we can hear. As you add shapes, they will connect and remain connected even if you need to move or delete items. Sound wave Cliparts download for free! | View 1,000 Sound wave cliparts, images and graphics from +50,000 possibilities. Spectrum diagrams. Bose Wave Soundtouch Owner's Guide. (1) (ii) Draw a ring around the correct answer to complete the sentence. This means that the particles move left and right which in turn makes the other particles start to oscillate. Describe an experiment to demonstrate the interference of sound. On one side there are the high-end audio enthusiasts who believe analog sound is superior because it captures the true essence of the sound wave, while on the other side, there are those who are convinced that. Waves, Light and Sound Unit Test Science 8 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. The other way of representing light is as a wave phenomenon. The microphone turns sound waves into an alternating electrical voltage which the scope displays on a screen: The taller the amplitude, the louder the sound. Loudness of sound is measured in decibels (dB). P-waves are sound waves, it's just that in seismology we are interested in frequencies that are lower than humans' range of hearing (the speed of sound in air is about 0. If I record the crack of a rifle bullet going past my ear and play it back, I will get a sound wave. Classes G and H offer enhancements to the basic class AB design. The player's lips produce a sound wave that travels into the instrument, but it also travels in the other direction, into the vocal tract. Properties of Sound Waves. It stimulates our sense of hearing. The Bose® Wave® music system IV includes a CD player, an AM/FM radio tuner and an input in the back for other sources. A sound wave is a limiting case of a shock wave, in which the pressure discontinuity across the shock tends to zero. We are well familiar with different types of waves such as water waves in the ocean, or gently formed ripples on a still pond due to a raindrop. Sound and light both travel as waves. Sound Waves 5. This is how fast the disturbance of the wave is moving. The basic components of a sound wave are frequency, wavelength and amplitude. The crests correspond to areas of high pressure (compressions) and the troughs correspond with the rarefactions or areas of low pressure. Explain the underlined terms. After a rain shower light waves pass through suspended water droplets in the sky. In fact, all three of these often apply. Plot the time vs. I use the 1/8" stereo jack into my sound card, making sure the input volume is on low. Fundamental Frequency and Harmonics Previously in Lesson 4 , it was mentioned that when an object is forced into resonance vibrations at one of its natural frequencies, it vibrates in a manner such that a standing wave pattern is formed within the object. Waves move in different ways and have different properties. Sound waves can be analyzed in terms of their amplitude and frequency. View the Sound Waves at Hard Rock Hotel and Casino Atlantic City maps and Sound Waves at Hard Rock Hotel and Casino Atlantic City seating charts for Sound Waves at Hard Rock Hotel and Casino Atlantic City in Atlantic City, NJ 08401. It's almost like sound waves moving on the string of a tin-can telephone, but electrons take the place of those cellulose fibers, and the sound waves are replaced by transverse EM waves. Sound waves travel a million times slower than light waves. The sound in diagram 2 has a greater amplitude than the one in diagram 1, so it will be. By continuing to browse you are agreeing to our use of cookies and other tracking technologies. people with good listening skills are more likely than others to be hired and promoted. Below is a basic diagram of a speaker. The resulting curves are known as the "waveform" (i. As seen in Figure 9. Sound can also travel between different. What is this process called? Bats emit a sound wave and they "listen" for the echo. Sound changes depending on how fast or slow an object vibrates to make sound waves. Use the following diagrams to answer questions #1-2 below: a. (Early scientists compared sound to a wave found in the water, but they really didn't understand it much more than that. Water waves are formed by vibrations in a liquid and sound waves are formed by vibrations in a gas (air). There are people who swear by either side. Snagit and Snagit Editor used to capture and edit. The sound waves in the diagram show the different frequencies for high and low notes. Refraction is seen most often when a wave passes from one transparent medium to another transparent medium. The loudness of the sound can be determined by the amplitude of the wave (air-pressure level). Calculate its frequency. An electronic circuit sends a signal to the loudspeaker so that it produces an ‘opposite wave’. The light waves of various colors slow down at different rates, bend and separate. These ray paths can be worked out using a ruler and protractor. (c) Diagram 2 shows an infrared wave. Sound Waves 5. We can pretty much use any sound to make your artwork. The initial signal above is a 200Hz sine wave, which has an amplitude of 5 volts. Longitudinal waves include sound waves, seismic P-waves, and ultrasound waves. Sound waves can be analyzed in terms of their amplitude and frequency. There is no sound in outer space. The musician can hear the notes being played on the instrument. Waves are used in the world to meet our societal needs and wants. Both light and sound can be described in terms of wave forms with physical characteristics like amplitude, wavelength, and timbre. However, in solids, molecules can support vibrations in other directions, hence, a number of different types of sound waves are possible. How Sound Waves Begin All sound waves begin with vibrating matter. (Sound can propagate through solids as well, but there are additional modes of propagation). An echo is a reflection of a sound wave. Sound waves consist of areas of high and low pressure called compressions and rarefactions, respectively. The sound waves are heard at a higher frequency as the car approaches the students. An example of a mechanical longitudinal wave, or a compressional wave, is a sound wave. Electromagnetic radiation is a wonderful thing. Shock waves are very small regions in the gas where the gas properties change by a large amount. Ancient wave theories. Examples of wave energy are light waves of a distant galaxy, radio waves received by a cell phone and the sound waves of an orchestra. Any song or recorded voice converted into a visual sound wave and delivered as an instant digital file, or printed on a high-quality fine art print or gallery wrapped canvas. Move the listener around and hear what she hears. The basic properties of sound are: pitch, loudness and tone. Draw diagrams to show: b) the actual particles in a sound wave traveling in an open tube and indicate the wavelength and regions of low-density air, normal density air, and high-density air. Probably the least expensive and most convenient source of ultrasound is a dog whistle. Like any waveform, sound has the characteristics of wavelength, frequency, amplitude and speed. Conversely, when sound or pressure waves hit the crystals, they emit electrical currents. When the vibrations are slow, it creates a low note. 0 dB is arbitrarily set at the threshold of hearing. These tubes are designed to create reflected waves that interfere with each other or cancel each other out. The wave has a wavelength of 0. Make waves with water, sound, and light and see how they are related. Sound B has a lower pitch (lower frequency) than Sound A and is softer (smaller amplitude) than Sound C. These vibrations of sound in the air are called sound waves. Those sound waves also echo; they travel to the back of the room, bounce off the walls, and then on to my ears. Enrich your media experience with Pyle Audio today!. Below is a picture of a longitudinal wave travelling along a spring. Develop a model of waves to describe patterns in terms of amplitude and wavelength and that waves can cause objects to move. Answer all questions. Vibrations cause air to compress like the lower wave pattern shown in the diagram below. A Venn diagram activity to test your knowledge of the differences and similarities between light and sound waves. whereas the later (electromagnetic wave) does not need a medium to penetrate through and can penetrate in the vacuum. Irregular repeating sound waves create noise, while regular repeating waves produce musical notes. Amplitude of a Wave, Amplitude of a Sound. All waves can be reflected, but this does not prove they are waves because particles also show these effects. The shaded bar above it represents the varying pressure of the wave. The stimulus that reaches my ears is, therefore, a combination (a sum) of the sound wave that comes directly from your hands plus the sound waves that bounce around the room for a while before reaching my ears. AP1 Waves Page 8 Light waves A, B, and C all have the same frequency. Probably the least expensive and most convenient source of ultrasound is a dog whistle. Sound waves are LONGITUDINAL waves consisting of areas of COMPRESSION and RAREFACTION. By continuing to browse you are agreeing to our use of cookies and other tracking technologies. wav file editor. Sources of ultrasound provide a means to produce a sound wave that is not perceived by humans as being a sound. Diagram Of A Sound Wave. If yes, then is there a clear pattern to the way in which the sound sensor values change based on the sound wave’s frequency? Explain. P-waves are sound waves, it's just that in seismology we are interested in frequencies that are lower than humans' range of hearing (the speed of sound in air is about 0. Modes of Sound Wave Propagation. Located inside the muffler is a set of tubes. Echo sounding is a type of sonar used to determine the depth of water by transmitting sound waves into water. These tubes are designed to create reflected waves that interfere with each other or cancel each other out. A wiring diagram is a simple visual representation of the physical connections and physical layout of an electrical system or circuit. Shock waves are generated. Fundamental Frequency and Harmonics Previously in Lesson 4 , it was mentioned that when an object is forced into resonance vibrations at one of its natural frequencies, it vibrates in a manner such that a standing wave pattern is formed within the object. com is your portal to free electronic circuits links. For a so-called plane wave, all we need to know is the direction of travel, since the wave has a constant magnitude over the plane perpendicular to the direction. Sound Waves in Air. When it propagates, shouldn't the mechanism be the same as that of a longitudinal sound wave? Why can a shock travel faster than sound? Unlike ordinary sound waves, the speed of a shock wave varies with its amplitude. Waves move in different ways and have different properties. Parts of a Sound System A sound system mainly consists of. sound waves can travel through a vacuum, but not light waves. Many beautiful natural phenomenon such as the rainbows, twinkling stars, northern lights etc. The basic components of a sound wave are frequency, wavelength and amplitude. The wave has a wavelength of 2 m and a frequency of 2. ) The wave shown here represents a constant tone at a set frequency. Unit 1 - Waves Sound Waves 7. the pinna and the external acoustic meatus. For two waves traveling in the same direction, these two distances are as follows: When we discussed interference above, it became apparent that it was the separation between the two speakers that determined whether the interference was constructive or destructive. Sound Waves: An Infinite Resource. Amplitude of a Wave, Amplitude of a Sound. Because light can travel through space, it cannot be a matter wave (mechanical) like sound or water waves. Chords for One Piece opening 16 ~Hands Up~ by Tricker Wave Sound (español latino). Active noise-canceling headphones can do everything that passive ones can do -- their very structure creates a barrier that blocks high-frequency sound waves. Which of the following properties shows that: 6 sound is a wave motion ?. Opposite happens if amplitude is lesser. Longitudinal Waves Diagram. The ear is another extraordinary organ of the house of wonders, that is, the human body. (a) On the graph paper given in Figure Y, draw a trace of the sound wave which has a higher frequency than that shown in Figure X. This brief overview is merely to give you an idea of the theme and plot of God's Grand Pageant. Each of the glasses will have a different tone when hit with the pencil, the glass with the most water will have the lowest tone while the glass with the least water will have the highest. How does sonar work? Sonar is simply making use of an echo. 1 Notation Sound is a longitudinal wave, in both position and pressure/density, as we’ll see. I’m going to make a list and focus on the similarities first. Label the wavelength and show the direction of propagation by using a ray. Sound waves consist of areas of high and low pressure called compressions and rarefactions, respectively. In this section we will be looking at the basic properties of sound. The lines in the diagram show the paths that sound “rays” take when going from the speaker to the listener. The change of direction of propagation of any wave phenomenon which occurs when the wave velocity changes. The wavelength of a wave is simply the length of one complete wave cycle. Waves and sound 2006 Question 8 [Ordinary Level] (i) Describe, using diagrams, the difference between transverse waves and longitudinal waves. Frequency is determined by how fast the sound producing objects vibrates. The vertical scale represents sound pressure, the horizontal scale represents time. Sound waves Sound is a compression wave. ) The wave shown here represents a constant tone at a set frequency. Sound travels slowest through this material Sonic Boom When something is travelling faster than the speed of sound, this occurs as the result of the piling up of compressional sound waves. When traditional therapies and medications cannot effectively treat the sub-acute and chronic pain that your patients live with every day, an alternative solution such as H-Wave can provide the long-lasting pain relief and rehabilitative benefits you are looking for. This circuit uses NE555 IC timer to drive a speaker. There are two major parts of the external ear, i. Frequency is the number of waves that move past a point in one second. The Propagation of sound. The other way of representing light is as a wave phenomenon. From this diagram, we see that the separation is given by R 1 – R 2. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear. There are two basic types of wave motion for mechanical waves: longitudinal waves and transverse waves. They are sent through a vacuum into the plane of the page, striking a rotating cylinder at various points as shown in the diagram at right. Examine definitions of wave properties and notice that sound. In sound, the disturbance is a vibrating object. Sound is made up of vibrations, or sound waves, that we can hear. Wave Diagram. More dB = more Volume. Examples of wave energy are light waves of a distant galaxy, radio waves received by a cell phone and the sound waves of an orchestra. The propagation. In the top-left of this drawing the RF energy (carrier wave) is not modulated by any sound. Sound waves. As seen in Figure 9. Sound Waves Seating Chart. The standing waves in a wind instrument are a little different from a vibrating string. It doesn't. , for its propagation. Most sound waves are a mixture of different frequencies. This usually involves turning lessons into games or fun projects. The compression is the point in a sound wave where the particles are close together. Read the questions carefully and answer. Draw and lable a diagram of both a transverse wave and a longitudinal wave. Use the diagram below to answer the following question(s). Refraction is the change in direction of a wave, caused by the change in the wave's speed. (Early scientists compared sound to a wave found in the water, but they really didn't understand it much more than that. Which number in the diagram represents a wavelength? A. Probably the least expensive and most convenient source of ultrasound is a dog whistle. One cycle is a model or historical paradigm which repeats itself within its sub-cycles, such as within each of the twelve age cycles of one complete cycle. Examples of wave energy are light waves of a distant galaxy, radio waves received by a cell phone and the sound waves of an orchestra. Sound Waves is an explicit teaching program and is fully resourced with Teacher Books, Student Books, Sound Waves Online and additional digital options for non-textbook schools. Regardless of the source of the wave, the relationship between waveform frequency and the period is the same. Sound can travel through any medium, but it cannot travel through a vacuum. Take time to analyze the purpose of each diagram and tell students to ask for clarification if they have questions. The Making Waves – Wave Properties Science Stations teach about the properties of different types of sound and ocean waves. This sound card also has a second (black) and third (orange) sound out connector. thus the answer is yes. They can be reflected by surfaces, these reflections are called echoes. First the sound waves travel into the ear canal, they vibrate the tympanic membrane, commonly called the eardrum. Sound waves travel through air and allow us to hear sound. vibrate left and right 3. The Bose® Wave® music system IV includes a CD player, an AM/FM radio tuner and an input in the back for other sources. Regardless of the source of the wave, the relationship between waveform frequency and the period is the same. Use the words compression and rarefaction correctly in your explanation. Wave Worksheet. Organized, reviewed, rated, and described by teachers. Related Links. An echo is a reflection of a sound wave. Exchange the positions of the person A and B and repeat the experiment. In the real world, communication between any two nearby persons takes place with the help of sound waves. wav file editor. Which of the three waves above would be the loudest sound wave? Which the quietest sound wave? Wave three has the highest amplitude (wave 2 is a close second) so it would make the loudest sound. Diagram 2 (i) Which one of the arrows, labelled A, B or C, shows the wavelength of the wave? Write the correct answer, A, B or C, in the box. Diagram Of A Sound Wave. This is another form of mysterious radio wave propagation which occurs during the spring and fall months during the sunspot minimum. Some of the worksheets for this concept are Lesson 1 sound and music the physics classroom, Teachers club science formclass p hysics waves name, Name date anatomy of a wave work, Name date anatomy of a wave work answers, Lesson physical science wave theory and sound, Sound waves, Wave, Sound. Sound is an invisible form of energy. Exchange the positions of the person A and B and repeat the experiment. Sound waves exert pressure when they hit a surface, but the effects are usually too small to notice. [Clarification Statement: Examples of models could include diagrams, analogies, and physical models using wire to illustrate wavelength and amplitude of waves. Ross has found that refraction of sound caused by temperature and wind gradients may have had a significant impact on the outcome of several Civil War Battles (Gettysburg, Gaines Mill, Fort Donelson, Seven Pines/Fair Oaks, Iuka, Perryville, Chancellorsville, and Five Forks). Image courtesy of Sounds in the Sea 2001, NOAA/OER. Meson: medium mass subatomic particle consisting of combination of a quark and antiquark. From rustling leaves to jet engines, the human ear can detect an amazing range of loud and quiet sounds. Standing sound waves in a pipe or didgeridoo, open at one end and closed at the other end, differ from standing waves on a string. no reflection, whereas bathrooms usually have sound reflective surfaces and therefore very low sound absorption properties, resulting in multiple reflections in the room and a diffused sound field. Wavelength and frequency are inversely related so that longer waves. You’re right in that sound waves are a vibration traveling through an object, including "condensed" things like solids and liquids. Wave front diagrams were not • Sound waves exist at frequencies well above 20. Waves and sound 2006 Question 8 [Ordinary Level] (i) Describe, using diagrams, the difference between transverse waves and longitudinal waves. Normally, we hear sound waves that have traveled through air, but sound can also travel through water, wood, the Earth, and many other substances. A wave has a speed of 30 m/s and a wavelength of 3 meters. Sound waves moving through the air is an example of this type of wave. The resulting curves are known as the "waveform" (i. GENERAL COMMENTS The main objective of these diagrams is to help students understand the operation of transmitters and receivers of various types by showing how the signal changes as it propagates through each stage in a series. Sound waves and electromagnetic waves are two different types of waves that are seen daily. H-Wave ® for Physicians A drug-free, evidence-based treatment option. The two waves in the second diagram are out-of-phase. The basic components of a sound wave are frequency, wavelength and amplitude. Opposite happens if amplitude is lesser. These sound waves are formed by objects vibrating (shaking back and forth). A speaker has several. Choose the manufacturer you wish to view diagrams for, or just scroll down. Using the vertical transverse motion for the S wave helps distinguish it from the Love wave. The pitch of the sound (how high or low the sound is), depends on how fast an object vibrates. "Digital audio refers to technology that can be used to record, store, generate, manipulate, and reproduce sound using audio signals encoded in. Uniting Metaphysics, Philosophy, Physics and Theology from One Thing, Absolute Space and the Spherical Standing Wave Structure of Matter. Our Visual Sound Wave art is printed on 270gsm Matt photo paper with a Satin finish – one of the highest quality finishes available with fade and scratch resistant properties. Not just any pressure, but the sound pressure of this particular tone relative to the atmospheric pressure, which is 0 sound pressure. Sound Waves Seating Chart. Play or make a sound from one water pipe. Explain how bats navigate using sound. The shaded bar above it represents the varying pressure of the wave. The main issue I'm having is getting the sound data into the graph to be drawn. Electromagnetic radiation is a wonderful thing. A student produces a series of waves, as shown below. But the wave inside a tube, since it is a sound wave already, is a longitudinal wave; the waves do not go from side to side in the. The sound in diagram 3 has a higher frequency than the. View and Download Bose Wave Soundtouch owner's manual online. Sound waves are longitudinal waves.

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