Sound wave definition for kids
[PDF File]Grade 8 Module 1 How can we affect sound as it travels from one end of ...
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sound waves are a type of mechanical wave, and therefore need a medium to travel through. A sound wave is a mechanical vibration that passes through a medium, such as a solid, liquid, or gas, to become a sound. The kids will then complete the first two questions in their notebook.
[PDF File]The Wave Theory of Sound - UMD
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the production or transmission of sound. The wave viewpoint was not unanimous, however. Gassendi (a contemporary of Mersenne and Galileo), for example, argued that sound is due to a stream of "atoms" emitted by the sounding body; velocity of sound is the speed of atoms; frequency is number emitted per unit time.
[PDF File]Properties of Sound - College of Computer, Mathematical, and Natural ...
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Properties of Sound • What is sound? • Wavelength, period, frequency • Interference and the linearity of sound • Sound attenuation ... – Most of the energy in a sound wave will be reflected from the boundary between media – If the incidence angle exceeds a threshold (see book), some energy will be refracted into ...
[PDF File]Waves: Introduction and Types - Paulding County School District
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This equation works for any wave form, water, sound, or radio waves. EXAMPLE: A wave as a Wavelength of 5 meters and a Frequency of 10 Hz. What is its velocity? V = 5 x 10 V= 50 meters per second Solve using the wave velocity equation: (Show your equation set up and math work) 1- A wave has a Wavelength of 12 meters and a Frequency of 10 Hz.
[PDF File]Sound Waves - University of Virginia
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Sound Waves Michael Fowler 3/23/07 “One-Dimensional” Sound Waves We’ll begin by considering sound traveling down a hollow pipe, to avoid unnecessary mathematical complications. Sound is a longitudinal wave—as the wave passes through, the air moves backwards and forwards in the pipe, this oscillatory movement is in the same direction the
[PDF File]Lesson 2 Sound and Music The Physics Classroom: http://www ...
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11. The speed of a sound wave depends upon the _____. a. frequency of the wave b. wavelength of the wave c. amplitude of the wave d. properties of the medium through which it moves 12. If a person yells (as opposed to whispering), then it will cause _____. a. air molecules to vibrate more frequently b. the sound wave to travel faster
Lesson 1 Sound and Music The Physics Classroom
6. A sound wave with its characteristic pattern of compressions and rarefactions is shown below. A centimeter ruler is included below the pattern. The wavelength of this sound wave is _____ cm. 7. The pitch of a sound is directly related to the _____ of the sound wave. a. frequency b. wavelength c. speed d. amplitude 8.
[PDF File]Waves and Sound A. Definition - Fort Bend ISD
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Waves and Sound I. Wave Characteristics A wave is a transfer of ENERGY from one point to another without the transfer of material between the points WAVES “MOVE” ENERGY, NOT MATTER A. Definition Amplitude: the height of the wave, measured in meters. Wavelength (λ): the distance between adjacent crests, measured in meters.
[PDF File]A Guide to Sound Waves
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2. The Wave Nature of Sound In this lesson we establish that sound is a longitudinal wave. We also discover that sound travels faster in a denser medium and establish that the reason for this is that the particles in the denser medium are closer together. 3. Echoes Two experiments that demonstrate the property of sound waves are shown.
[PDF File]SOUND WAVES - UC Santa Barbara
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Sound Wave Intensity Sound wave – at any given instant: – PE stored in pressure gradient (i.e. non-uniform pressure) – KE stored in motion of fluid – Energy travels in a particular direction – “Direction of propagation” – determined by k x, k y, k z Wave Intensity (Units: W/m2) – Average power per unit area transmitted by wave – Area must be measured perpendicular to ...
[PDF File]Characteristics of Sound Waves - Open University of Sri Lanka
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The intensity of a sound wave is a physical quantity and is defined as the rate of flow of energy per unit area perpendicular to the direction of the wave. It can be shown that the intensity of a sound wave in air is proportional to: I. The density of the air; II. The square of the frequency; and III. The square of the amplitude.
[PDF File]Lesson 1 Sound and Music The Physics Classroom
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6. A sound wave with its characteristic pattern of compressions and rarefactions is shown below. A centimeter ruler is included below the pattern. The wavelength of this sound wave is _____ cm. 7. The pitch of a sound is directly related to the _____ of the sound wave. a. frequency b. wavelength c. speed d. amplitude 8.
[PDF File]Fourth Grade Science Waves - Sound - Two Bit Circus Foundation
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of a wave. Length and tension affect sound pitch. changing frequencies & wavelengths. Vibrations in air can produce sound. Sound carries energy that can move through a medium to cause objects to move. Connection to Culminating Activity Amount of energy affects the amplitude of a wave. Loudness is perceived through the change in amplitude of a wave.
[PDF File]Sound and Hearing - Museum of Science
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The faster a sound wave travels, the more distance it will cover in the same period. If a sound wave is observed to travel a distance of 700 meters in 2 seconds, then the speed of the wave would be 350 m/s. A slower wave would cover less distance – perhaps 660 meters – in the same time period of 2 seconds and thus have a speed of 330 m/s.
[PDF File]Properties of Sound Waves
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Sound does not readily pass from one medium to another if its velocities in the two media are markedly different. Thus, when a sound wave in air strikes the surface of water most of the sound energy is reflected and very little is refracted into the water. Thus, to a swimmer under the water the sound in air would probably be inaudible.
[PDF File]MECHANICAL WAVES AND SOUND - UC Santa Barbara
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Transverse vs. Longitudinal Waves Two different motions to describe in a wave: – Motion of the wave's energy – Motion of individual molecules of the wave Transverse waves → Two motions are perpendicular – Waves on a string, water surface waves Longitudinal waves → Two motions are parallel – Sound waves Waves can have both transverse and longitudinal motion
[PDF File]Lesson 12 Properties of Sound Waves - Richland County School District One
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Sound waves leave a source, like a horn, with a certain amount of energy and, therefore, a certain amplitude. Loudness is how you perceive the energy of a sound wave. A wave with a greater amplitude will produce a louder sound. Sounds are quieter farther from their source. As sound waves travel away from a horn, the air particles vibrate back and
[PDF File]Characteristics of Sound and Classification of Sound
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The intensity of sound at a point is defined as the average rate of flow of acoustic energy(Q) per unit area situated normally to the direction of. und wave. The intensity depends upon the following factors. Where n=Frequency. of the sound wave. a=amplitude of the wave. p=density of the medium. v=velocity of sound in that medium
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