Sound
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The document lists different Indian musical instruments along with their vibrating parts that produce sound. It then discusses the turning fork, an instrument invented by John Shore that vibrates at different frequencies when struck. Finally, it covers concepts like sound intensity being proportional to amplitude, loudness depending on intensity, frequency and efficiency and being measured in decibels, and examples of sound levels from different sources.
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Basicsoundprinciples
Sound is a form of energy that travels through air or other substances in waves. The wavelength is the distance between wave peaks and the amplitude is the height of the wave. Sound waves are caused by vibration and consist of variations in air pressure that travel through air or other materials. The pitch of a sound depends on its frequency, which is measured in Hertz (cycles per second). Higher frequencies are perceived as higher pitches while lower frequencies are lower pitches. Reflection and absorption of sound waves impact how sound is perceived in a space.
Loudness and pitch
This document discusses concepts related to the perception of sound including loudness, pitch, and timbre. It defines key terms like intensity, loudness, frequency, pitch, phon, sone, mel, and timbre. Intensity is a physical property measured in decibels, while loudness, pitch and timbre represent human perception. The phon, sone and mel scales were developed through experiments with listeners adjusting tones to be equally loud or high in pitch. Understanding these concepts is important for audio engineering and applying amplification for hearing loss.
Properties of sound
The document discusses the key properties of sound:
Pitch refers to the highness or lowness of a sound and depends on the frequency of vibrations. Intensity refers to the energy of a sound wave and is measured in watts per meter squared. Loudness is a subjective measure of how loud a sound seems and is related to intensity, distance from the source, and condition of the transmitting medium. Quality or timbre distinguishes one sound from another by other characteristics beyond pitch and loudness. The document provides examples of the intensity and loudness of common sounds to illustrate these concepts.
Physics
Sound waves can reflect, refract, diffract, and interfere. Reflection is when sound waves bounce off surfaces, which can cause echoes. Refraction causes sound waves to bend as they enter different mediums. Diffraction is when waves spread out or bend around obstacles. Interference occurs when two sounds waves meet and their effects combine, which can result in constructive or destructive interference. Resonance is when one vibrating object forces another object to vibrate at the same frequency, amplifying the sound. The Doppler effect changes the perceived frequency of a sound wave based on whether the source is approaching or receding from the observer.
Properties Of Sound
Loudness is perceived as the energy of sound waves, determined by amplitude and distance from the source. Intensity, or energy per second, is measured in decibels. Pitch depends on frequency, measured in hertz, and humans can hear between 20-20,000 Hz. The Doppler effect describes how the frequency of sound changes depending on the motion of the source relative to the observer. Music is a pleasing combination of sound waves, while noise is an unpleasant combination.
sound
1) Sound is produced by vibrations traveling through a medium as a longitudinal wave. When an object vibrates, it disturbs the surrounding air molecules which then transfer the sound energy through compressions and rarefactions.
2) Sound propagates through solids, liquids, and gases by particles transferring energy to adjacent particles. It travels fastest in solids where particles are close together, slower in liquids, and slowest in gases where particles are farther apart.
3) Sound needs a medium like air, water or solid material to travel through. It cannot travel through a vacuum. The speed of sound varies depending on the density of the medium, being highest in solids at around 5,960 m/s
Ch.12.less.2.what are the properties of sound [autosaved] [recovered]
This document discusses the properties of sound. It explains that sound is a type of energy that travels through matter in longitudinal waves of compression and rarefaction. It moves through solids fastest and gases slowest. Echoes are sounds waves that reflect off surfaces. Covering rooms in soft materials helps absorb sound waves and reduce echoes by transferring the wave's energy into thermal energy. Pitch is how high or low a sound is and is related to frequency, or the number of vibrations per second. The Doppler effect changes a sound's pitch depending on whether the source is moving toward or away from the listener. Amplitude refers to the density of compressions and rarefactions in sound waves.
Characteristic of sound waves
Frequency refers to the number of complete back-and-forth vibrations of a medium per unit of time. It is measured in Hertz, with one Hertz equaling one vibration per second. All particles in a vibrating medium oscillate at the same frequency, transferring sound waves that are detected by the ear at that frequency. Frequency can also refer to the number of compressions or rarefactions that pass a given point per unit of time in a sound wave.
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Basicsoundprinciples
Sound is a form of energy that travels through air or other substances in waves. The wavelength is the distance between wave peaks and the amplitude is the height of the wave. Sound waves are caused by vibration and consist of variations in air pressure that travel through air or other materials. The pitch of a sound depends on its frequency, which is measured in Hertz (cycles per second). Higher frequencies are perceived as higher pitches while lower frequencies are lower pitches. Reflection and absorption of sound waves impact how sound is perceived in a space.
Loudness and pitch
This document discusses concepts related to the perception of sound including loudness, pitch, and timbre. It defines key terms like intensity, loudness, frequency, pitch, phon, sone, mel, and timbre. Intensity is a physical property measured in decibels, while loudness, pitch and timbre represent human perception. The phon, sone and mel scales were developed through experiments with listeners adjusting tones to be equally loud or high in pitch. Understanding these concepts is important for audio engineering and applying amplification for hearing loss.
Properties of sound
The document discusses the key properties of sound:
Pitch refers to the highness or lowness of a sound and depends on the frequency of vibrations. Intensity refers to the energy of a sound wave and is measured in watts per meter squared. Loudness is a subjective measure of how loud a sound seems and is related to intensity, distance from the source, and condition of the transmitting medium. Quality or timbre distinguishes one sound from another by other characteristics beyond pitch and loudness. The document provides examples of the intensity and loudness of common sounds to illustrate these concepts.
Physics
Sound waves can reflect, refract, diffract, and interfere. Reflection is when sound waves bounce off surfaces, which can cause echoes. Refraction causes sound waves to bend as they enter different mediums. Diffraction is when waves spread out or bend around obstacles. Interference occurs when two sounds waves meet and their effects combine, which can result in constructive or destructive interference. Resonance is when one vibrating object forces another object to vibrate at the same frequency, amplifying the sound. The Doppler effect changes the perceived frequency of a sound wave based on whether the source is approaching or receding from the observer.
Properties Of Sound
Loudness is perceived as the energy of sound waves, determined by amplitude and distance from the source. Intensity, or energy per second, is measured in decibels. Pitch depends on frequency, measured in hertz, and humans can hear between 20-20,000 Hz. The Doppler effect describes how the frequency of sound changes depending on the motion of the source relative to the observer. Music is a pleasing combination of sound waves, while noise is an unpleasant combination.
sound
1) Sound is produced by vibrations traveling through a medium as a longitudinal wave. When an object vibrates, it disturbs the surrounding air molecules which then transfer the sound energy through compressions and rarefactions.
2) Sound propagates through solids, liquids, and gases by particles transferring energy to adjacent particles. It travels fastest in solids where particles are close together, slower in liquids, and slowest in gases where particles are farther apart.
3) Sound needs a medium like air, water or solid material to travel through. It cannot travel through a vacuum. The speed of sound varies depending on the density of the medium, being highest in solids at around 5,960 m/s
Ch.12.less.2.what are the properties of sound [autosaved] [recovered]
This document discusses the properties of sound. It explains that sound is a type of energy that travels through matter in longitudinal waves of compression and rarefaction. It moves through solids fastest and gases slowest. Echoes are sounds waves that reflect off surfaces. Covering rooms in soft materials helps absorb sound waves and reduce echoes by transferring the wave's energy into thermal energy. Pitch is how high or low a sound is and is related to frequency, or the number of vibrations per second. The Doppler effect changes a sound's pitch depending on whether the source is moving toward or away from the listener. Amplitude refers to the density of compressions and rarefactions in sound waves.
Characteristic of sound waves
Frequency refers to the number of complete back-and-forth vibrations of a medium per unit of time. It is measured in Hertz, with one Hertz equaling one vibration per second. All particles in a vibrating medium oscillate at the same frequency, transferring sound waves that are detected by the ear at that frequency. Frequency can also refer to the number of compressions or rarefactions that pass a given point per unit of time in a sound wave.
charecteristics of sound physics
The group members are Fatima, Mariyam, Kainat, Fatima, Kousar, Salama. The document discusses the characteristics of sound including pitch, loudness, quality, and intensity. Pitch depends on the frequency of sound waves. Higher frequency means higher pitch while lower frequency means lower pitch. Loudness depends on several factors like the energy, distance from the source, medium, and area. Intensity is the amount of energy a sound wave carries per second through a unit area and is measured in watts per meter squared.
Ppt on sound
This document discusses the production, propagation, and distinguishing factors of sound. It explains that sound is produced by vibration and requires a medium like air, water or solid material to propagate. Sound propagation involves compressions and rarefactions that form mechanical waves. The key characteristics of sound waves are described as frequency, wavelength, amplitude, pitch and loudness. Factors like temperature and material affect the speed of sound. Sound reflects off surfaces following the laws of reflection. The human ear receives sound waves through the outer, middle and inner ear before the brain interprets them.
physics - SOUND - AJAY
I made it for class lX physics chapter sound. I hope it may helpful for u .
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The document discusses key aspects of sound including pitch, frequency, loudness, timbre, and types of musical instruments. It explains that pitch is determined by frequency, with higher frequencies producing higher pitches, and is measured in hertz. Loudness depends mainly on the amplitude of sound waves, and is measured in decibels. Timbre allows distinguishing between sounds of the same pitch and loudness based on differences in their waveforms. Musical instruments are also categorized into stringed, wind, and percussion types.
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Sound is a form of energy that is created by vibrations and travels in waves. It can be heard when these vibrations reach our ears. The document defines sound and explains that louder sounds have higher amplitudes in their waves while softer sounds have lower amplitudes. It also describes that pitch is determined by the speed of the vibrations, with faster vibrations creating higher pitches and slower vibrations making lower pitches. Volume and pitch are the main characteristics used to describe different sounds.
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This document defines 20 key terms related to sound, including sound waves, compression, frequency, hertz, infrasonic, ultrasonic, pitch, fundamental, sound frequency spectrum, octave, bass, midrange, treble, equalization, amplitude, decibel, wavelength, velocity, harmonic, and phase. It provides a brief overview of key concepts in sound production and perception.
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The document discusses key properties and characteristics of sound. It defines sound as a vibration that travels through air or other mediums and can be heard. Sound waves are longitudinal waves that require a medium. The amplitude of a wave determines its volume or loudness, while frequency determines its pitch or how high or low it is. Higher frequencies have smaller wavelengths. The human ear can detect sounds between 20 Hz and 20 kHz. The speed of sound depends on the medium and temperature. Ultrasound uses high frequency sound to image inside the body. The Doppler effect causes changes in perceived frequency for moving sources due to wave compression.
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The document discusses various characteristics of sound including loudness, pitch, echo, the Doppler effect, music, natural frequencies, resonance, fundamental frequency, overtones, reverberation, and the eardrum. It provides examples to illustrate loudness, pitch, the Doppler effect, resonance, fundamental frequency, and reverberation.
CBSE Class IX Sciense Physics Sound
Sound is a travelling wave that is an oscillation of pressure transmitted through a medium. Humans can hear sounds between 20-20,000 Hz. Sound speed depends on the medium and is faster in solids than liquids and gases due to closer particle packing. Noise is an unwanted sound that can cause hearing damage at high volumes. The ear detects sound waves which are then transmitted to the brain. Properties of sound waves include wavelength, amplitude, and frequency which determine pitch. Ultrasound has a frequency above human hearing range.
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A wave is a repeating disturbance that transfers energy through matter or space. There are two main types of waves - longitudinal waves, where the matter moves parallel to the direction of the wave, and transverse waves, where energy is transferred without transferring matter. Sound is a form of energy caused by vibrations that transfers through longitudinal waves. Key properties of waves include wavelength, frequency, amplitude, and speed. Sound waves can interfere constructively or destructively and be reflected, refracted, or absorbed.
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This PPt Contain Characteristic & Classification of Sound coverd under Physics Subject Of Engineering.....
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Sound is produced by vibrations of objects. The teacher demonstrates this by having students feel vibrations in their throat when speaking and on a speaker of a radio. Vibrations of strings on a sitar or membranes of drums and bells produce the sounds we hear from these instruments. In a flute, blowing air causes the air molecules inside to vibrate, which produces sound.
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- Reflection depends on the properties of the reflecting surface and the media on either side.
- Intensity of sound depends on factors like amplitude, frequency, area of sound source, and distance from the source.
- Reverberation time is the time it takes for sound intensity to decrease by a million times after the source
Sound ppt
Sound is produced by vibration and travels as longitudinal waves, causing alternating regions of high and low pressure called compressions and rarefactions. The human ear detects these pressure variations and converts them into electrical signals that are sent to the brain for interpretation as sound. Sound waves have properties like amplitude, frequency, wavelength and velocity that depend on the medium and source of vibration.
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charecteristics of sound physics
The group members are Fatima, Mariyam, Kainat, Fatima, Kousar, Salama. The document discusses the characteristics of sound including pitch, loudness, quality, and intensity. Pitch depends on the frequency of sound waves. Higher frequency means higher pitch while lower frequency means lower pitch. Loudness depends on several factors like the energy, distance from the source, medium, and area. Intensity is the amount of energy a sound wave carries per second through a unit area and is measured in watts per meter squared.
Ppt on sound
This document discusses the production, propagation, and distinguishing factors of sound. It explains that sound is produced by vibration and requires a medium like air, water or solid material to propagate. Sound propagation involves compressions and rarefactions that form mechanical waves. The key characteristics of sound waves are described as frequency, wavelength, amplitude, pitch and loudness. Factors like temperature and material affect the speed of sound. Sound reflects off surfaces following the laws of reflection. The human ear receives sound waves through the outer, middle and inner ear before the brain interprets them.
physics - SOUND - AJAY
I made it for class lX physics chapter sound. I hope it may helpful for u .
BY: AJAY
lx
RISY
Science Of Sound
The document discusses key aspects of sound, including how humans perceive it through hearing and how some animals like bats and whales use echolocation to navigate and find food. It notes that sound travels in waves and can move through various mediums like air, water, and solids. The scientific study of sound is called acoustics, while the study of underwater sound is called hydroacoustics.
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The document discusses key aspects of sound including pitch, frequency, loudness, timbre, and types of musical instruments. It explains that pitch is determined by frequency, with higher frequencies producing higher pitches, and is measured in hertz. Loudness depends mainly on the amplitude of sound waves, and is measured in decibels. Timbre allows distinguishing between sounds of the same pitch and loudness based on differences in their waveforms. Musical instruments are also categorized into stringed, wind, and percussion types.
Presentation for the sound lesson
Sound is a form of energy that is created by vibrations and travels in waves. It can be heard when these vibrations reach our ears. The document defines sound and explains that louder sounds have higher amplitudes in their waves while softer sounds have lower amplitudes. It also describes that pitch is determined by the speed of the vibrations, with faster vibrations creating higher pitches and slower vibrations making lower pitches. Volume and pitch are the main characteristics used to describe different sounds.
6 loudness
This document discusses the physics of sound and how humans perceive attributes like loudness. It covers topics like sound pressure level, the inverse relationship between intensity and distance, and how loudness depends on factors like frequency, bandwidth, duration, and partial masking. Loudness is measured in phones and contours of equal loudness show how loudness level varies with frequency. The ear's loudness response depends on critical bands and loudness can be greater for binaural vs monaural sounds. Intensity discrimination involves changes in neuron firing rates and patterns at different sound levels.
Sound wave definitions
This document defines 20 key terms related to sound, including sound waves, compression, frequency, hertz, infrasonic, ultrasonic, pitch, fundamental, sound frequency spectrum, octave, bass, midrange, treble, equalization, amplitude, decibel, wavelength, velocity, harmonic, and phase. It provides a brief overview of key concepts in sound production and perception.
sound
This document discusses the topic of sound. It covers how sound is produced through vibration, its importance in communication and entertainment, and how it propagates through a medium. Key points covered include the speed of sound, echo and reverberation, the range of human hearing, noise versus music, ultrasounds and their applications including sonar and ultrasonography. The document also briefly mentions Doppler effect and its use in radar technology.
Properties of Sound
The document discusses key properties and characteristics of sound. It defines sound as a vibration that travels through air or other mediums and can be heard. Sound waves are longitudinal waves that require a medium. The amplitude of a wave determines its volume or loudness, while frequency determines its pitch or how high or low it is. Higher frequencies have smaller wavelengths. The human ear can detect sounds between 20 Hz and 20 kHz. The speed of sound depends on the medium and temperature. Ultrasound uses high frequency sound to image inside the body. The Doppler effect causes changes in perceived frequency for moving sources due to wave compression.
The characteristics of sound!
The document discusses various characteristics of sound including loudness, pitch, echo, the Doppler effect, music, natural frequencies, resonance, fundamental frequency, overtones, reverberation, and the eardrum. It provides examples to illustrate loudness, pitch, the Doppler effect, resonance, fundamental frequency, and reverberation.
CBSE Class IX Sciense Physics Sound
Sound is a travelling wave that is an oscillation of pressure transmitted through a medium. Humans can hear sounds between 20-20,000 Hz. Sound speed depends on the medium and is faster in solids than liquids and gases due to closer particle packing. Noise is an unwanted sound that can cause hearing damage at high volumes. The ear detects sound waves which are then transmitted to the brain. Properties of sound waves include wavelength, amplitude, and frequency which determine pitch. Ultrasound has a frequency above human hearing range.
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A wave is a repeating disturbance that transfers energy through matter or space. There are two main types of waves - longitudinal waves, where the matter moves parallel to the direction of the wave, and transverse waves, where energy is transferred without transferring matter. Sound is a form of energy caused by vibrations that transfers through longitudinal waves. Key properties of waves include wavelength, frequency, amplitude, and speed. Sound waves can interfere constructively or destructively and be reflected, refracted, or absorbed.
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Sound is produced by vibrations of objects. The teacher demonstrates this by having students feel vibrations in their throat when speaking and on a speaker of a radio. Vibrations of strings on a sitar or membranes of drums and bells produce the sounds we hear from these instruments. In a flute, blowing air causes the air molecules inside to vibrate, which produces sound.
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Waves transfer energy without transferring matter. Frequency is defined as the number of waves produced in a given time. The Doppler effect is the apparent change in frequency of a sound caused by the motion of either the listener or the source of the sound.
sound and its property
This document discusses acoustics and the reflection of sound waves. It covers topics like reflection of sound waves from rigid and curved surfaces, reflection between different media, intensity of sound waves, reverberation time, echoes, and reducing noise in buildings. The key points are:
- Sound waves reflect in a similar manner as light waves, changing direction when reflecting off surfaces.
- Reflection depends on the properties of the reflecting surface and the media on either side.
- Intensity of sound depends on factors like amplitude, frequency, area of sound source, and distance from the source.
- Reverberation time is the time it takes for sound intensity to decrease by a million times after the source
Sound ppt
Sound is produced by vibration and travels as longitudinal waves, causing alternating regions of high and low pressure called compressions and rarefactions. The human ear detects these pressure variations and converts them into electrical signals that are sent to the brain for interpretation as sound. Sound waves have properties like amplitude, frequency, wavelength and velocity that depend on the medium and source of vibration.
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This document discusses the properties of sound. It defines sound as a type of energy that moves through matter in longitudinal waves of vibration. It describes how sound travels faster through solids than gases due to the closer packing of particles. Frequency is defined as the number of times a particle vibrates per second and is measured in Hertz. Pitch and frequency are related, but not the same - pitch is how our ears perceive sound based on the number of peaks in the vibrations. Amplitude refers to the density of particles during compression and rarefaction and is measured in decibels.
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Sound is a form of energy called sound energy that produces changes in objects when they vibrate. The characteristics of sound include intensity, pitch, and timbre. Intensity can be soft or loud, pitch is higher for sounds produced in smaller areas and lower in larger areas, and timbre is the quality of sound that makes instruments like flutes and saxophones different. Sound spreads in all directions from its source in a straight line at about 340 meters per second. Musical instruments are classified as strings, percussion, or winds depending on whether they produce sound through vibrating strings, being hit, or blowing into a resonator.
The nature of sound
Sound is produced by air molecules vibrating in patterns called sound waves. Sound waves can be longitudinal or transverse. Characteristics of sound include pitch, determined by frequency; intensity, determined by amplitude; and quality, determined by the form of the waves. Musical sounds have a repeatable wave pattern while noise does not. Examples of low frequency sounds are lion roars and whale songs, while high frequency sounds include bird chirps and whistles. Intensity is measured in watts per meter squared and perceived loudness is measured in decibels. Tone depends on the combination of frequencies in the sound waves.
A project on sound by nikund
Sound is a form of energy that is transmitted through vibration. It can travel through gases, liquids, and solids as longitudinal waves called compression waves. In humans, sound is detected by the ear, which contains the outer, middle, and inner ear that work together to detect changes in pressure and convert them into nerve signals that the brain interprets as sound. The document then discusses various properties of sound waves including frequency, amplitude, intensity, speed, and direction as well as characteristics like pitch, duration, loudness, and timbre. It also covers related topics such as echo, reverberation, sonar, ultrasound, infrasound, and sonic booms.
Sound Waves
1. Sound is a longitudinal mechanical wave that propagates through a medium such as air or water by compressions and rarefactions which create regions of high and low pressure.
2. The document discusses several properties of sound waves including that frequency determines pitch, amplitude determines loudness, and speed depends on the properties of the medium.
3. Wave interference and phenomena like resonance, standing waves, and the Doppler effect are also covered as they relate to the nature and perception of sound waves.
Sound 2.ppt
Sound is a longitudinal wave that travels through a medium and can interact with objects through reflection, diffraction, and interference. The speed of sound depends on the elasticity, density, and temperature of the medium, being fastest in solids like glass and slowest in liquids and gases like water and air. Properties of sound include loudness, measured in decibels, pitch depending on frequency, and the Doppler effect changing perceived frequency based on the motion of the source. Sonar uses reflected sound waves to locate underwater objects, as do some animals through echolocation. The document provides examples of simple homemade instruments for the Blue Man Group challenge.
An Introduction to Audio Principles
This document provides an overview of sound and hearing, including:
1. It describes how the human ear works, from collecting sound waves through the outer ear and transmitting vibrations through the ossicles to the cochlea where hair cells detect different frequencies.
2. It discusses properties of sound like loudness, pitch, and timbre, and how they are perceived. Loudness depends on amplitude, pitch on frequency, and timbre on waveform complexity.
3. It explains characteristics of sound waves like wavelength, frequency, speed of sound, and the decibel scale used to measure sound intensity and pressure levels.
G7 Science Q3- Week 5- Sound Energy..ppt
Sound is a mechanical wave that travels through a medium such as air, water or solid materials. It is produced by vibrating objects and propagates by compressing and decompressing particles in the medium. The characteristics of sound waves can be described using concepts such as wavelength, frequency, amplitude, pitch and intensity. Wavelength is the distance between two consecutive compressions, frequency is the number of waves passing a point per second, and amplitude relates to loudness. Sound travels faster in denser media like solids than in liquids or gases.
materi kelas 8 Sound
Sound is produced by vibration and requires a medium to travel through. The document discusses the definition of sound, the speed of sound in different mediums, experiments measuring the speed of sound, factors affecting sound like frequency and amplitude, resonance, and reflection of sound. It provides examples and formulas for calculating speed of sound based on distance and time, using the relationship speed = distance/time. Human hearing is limited to sounds between 20-20,000 Hz.
Sound
This document discusses key concepts about the nature and properties of sound. It defines sound as a mechanical wave that is created by vibrating objects and propagates through a medium by particle vibration. The document covers topics like: the generation and propagation of sound waves; amplitude and frequency; speed of sound in different mediums; and the Doppler effect. It provides examples of the range of hearing for different animals and defines concepts such as intensity, wavelength, reflection, refraction, and interference of sound waves.
Preliminary Physics - World communicates 2
This document discusses the properties and behavior of sound waves. It explains that sound waves are longitudinal waves that propagate through a medium by transmitting pressure variations. The speed at which sound travels depends on the properties of the medium, with denser and less compressible materials allowing for faster transmission. The document also describes how sound waves can be reflected, refracted, undergo interference and superposition, and how their amplitude and frequency determine the loudness and pitch we perceive.
Sound
The document discusses sound and how it is produced through vibrations. It describes how different instruments produce sound through vibrating strings, lips, reeds or air columns. It also discusses properties of sound including frequency, pitch, loudness, intensity, harmonics, resonance, the human ear, and how sounds are perceived.
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Friction
Friction is the force that opposes the motion between two surfaces in contact with each other. It arises due to bumps on surfaces interacting at a microscopic level called microwelds. The greater the force pressing the surfaces together, the stronger the microwelds and friction. Static friction is what prevents objects from moving when pushed, until the pushing force overcomes it, at which point the object will slide along the surface, experiencing sliding friction which is still resisting but less than static. Rolling friction is even less, making wheeled motion easier.
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The document lists different Indian musical instruments including drum, tabla, violin, veena and flute. It then pairs each instrument with the part that vibrates to produce sound, such as stretched membrane, air column or stretched string. The document also provides information on turning forks, loudness, factors affecting sound intensity, examples of sound levels and examples of animal sounds.
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Sound
- 5. drum flute violin veena tabla Stretched membrane Air column Stretched string Stretched string Stretched membrane MUSICAL INSTRUMENT VIBRATING PART PRODUCING SOUND
- 6. Turning fork is invented by british musician John Shore. Turning forks vibrate when strike it against a surface or with an object.different turning forks have different frequencies.
- 10. The intensity of sound is proportional to the amplitude of the sound. The intensity of the sound is the amount of energy passing through unit area per second perpendicular to the direction of propagation. Its unit is W/m^2
- 11. o Loudness is the measure of audibility produced by sound in a person. o It depends on Intensity Frequency Efficiency o Unit is Decibel(db)
- 12. Amplitude. Surface area. Distance between source and listener. Density of the medium.
- 13. Normal breathing Soft whisper Normal conversation Busy traffic Average factory 10db 30db 60db 80db 90db
- 15. Chriping of crickets Whistles Birds sound Voice of women Cow Drum Lion,crow,duck Voice of man