Table of Contents
What are the 5 main properties of sound?
There are five main characteristics of sound waves: wavelength, amplitude, frequency, time period, and velocity. The wavelength of a sound wave indicates the distance that wave travels before it repeats itself. The wavelength itself is a longitudinal wave that shows the compressions and rarefactions of the sound wave.
What are the factors intensity of sound?
Factors affecting intensity are the amplitude of vibration, density of the medium and the distance of source from human ear.
What are the four sound sources?
Sound can travel through wood, steel, water, and countless other materials. Sound sources can be divided into two types: natural and artificial, or human-made. Examples of natural sources are animals, wind, flowing streams, avalanches and volcanoes.
What are the sources of sound?
Sound sources can be divided into two types, natural and man-made. Examples of natural sources are: animals, wind, flowing streams, avalanches, and volcanoes. Examples of man-made sources are: airplanes, helicopters, road vehicles, trains, explosions, factories, and home appliances such as vacuum cleaners and fans.
What are the sources of sound in music?
musical sound, any tone with characteristics such as controlled pitch and timbre. The sounds are produced by instruments in which the periodic vibrations can be controlled by the performer. That some sounds are intrinsically musical, while others are not, is an oversimplification.
What are the 5 characteristics of waves?
The five main characteristics of sound waves include wavelength, amplitude, frequency, time period and velocity. Wavelength: The most important characteristic of sound waves may be the wavelength.
What are the factors on which intensity depends?
∴ The intensity of wave depends on :
- (i) Frequency; I∝n2.
- (ii) Amplitude I∝α2.
- (iii) Density of a medium 7∝ρ
- (iv) Velocity of a wave I∝U.
Which sound has the highest intensity?
From experimenting, I have found that square sound waves have greatest sound intensity (dB) than sawtooth, which has greater sound intensity than sine waves.
What are the three source of sound?
The source of sound can be both natural or man-made. Few examples of natural sound sources are humans, animals, flowing water, avalanches and many more. Sources of man-made sounds are vehicles, factories, fans, explosions, etc.
What are the two sources of sounds?
Each vibrating body is a source of sound. We , the human being , produce sound when our vocal cords vibrate on blowing air through them by our lungs. Some animals like birds, frogs etc., also produce sound due to vibration of their vocal cords.
What is the source of all kinds of sounds?
Answer: The source of a sound vibrates, bumping into nearby air molecules which in turn bump into their neighbours, and so forth. This results in a wave of vibrations travelling through the air to the eardrum, which in turn also vibrates.
What are the 6 characteristics of sound?
Sound wave can be described by five characteristics: Wavelength, Amplitude, Time-Period, Frequency and Velocity or Speed.
- Wavelength. Source: www.sites.google.com.
- Amplitude.
- Time-Period.
- Frequency.
- Velocity of Wave (Speed of Wave)
What are the 4 characteristics of sound?
Every sound has qualities. These qualities relate to different aspects of the sound, such as the volume or the duration. There are four sound qualities: pitch, duration, intensity and timbre. 1.
In which three factors the intensity of sound depends upon?
Sound’s intensity depends on frequency,pitch and amplitude.
What is intensity of the sound class 9?
Intensity : The amount of sound energy passing each second through unit area is called the Intensity of Sound.
What’s the source of sound?
Sound is a type of energy made by vibrations. When an object vibrates, it causes movement in surrounding air molecules. These molecules bump into the molecules close to them, causing them to vibrate as well. This makes them bump into more nearby air molecules.
What are the factors affecting the intensity of sound waves?
Factors affecting the sound intensity 1 Distance between the ear & the sound source. 2 The amplitude of vibration of the sound source. 3 The area of the vibrating surface 4 The medium density through which sound travels (propagates) 5 The wind direction. More
What is the unit of sound intensity?
Sound intensity, also known as acoustic intensity, is defined as the power carried by sound waves per unit area in a direction perpendicular to that area. The SI unit of intensity, which includes sound intensity, is the watt per square meter (W/m 2 ).
How do you find the intensity of a sound wave?
Generally, when considering the intensity of a sound wave, we take the intensity to be the time-averaged value of the power, denoted by divided by the area, The intensity of a sound wave is proportional to the change in the pressure squared and inversely proportional to the density and the speed.
How does sound intensity increase with resonance?
Sound intensity increases by increasing the vibrating surface area when the source of sound touches a resonance body (box). We notice in the stringed musical instruments such as the guitar and the violin that the strings are fixed above an empty wooden box (resonance box) to increase the sound intensity.