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The sound waves refer to a simple pressure of air that is mainly created by the monument of the molecules in the air. The vibration of the air takes away the sound from the source that is a specific frequency as well as amplitude.
The wavelength is also an exterminator of the sound frequency. Besides this molecule, movement denotes the sound frequency along with the amplitude of the wave of sound.
- A person can hear the sound with a frequency between 20 to 20000 Hertz. In order to travel sounds need a propagation medium to take away the sound from the source to the other medium.
What are Sound Waves?
The wave of sound refers to the particular pattern of disturbance that is mainly caused by the energy that travels from the sound source.
Figure 1: The sound waves visualisation
The energy of the sound travels as sound waves. Two different types of sound waves are commonly seen "viz transverse wave" as well as "the longitudinal wave" (Nikolić & Said-Houari, 2021).
In the case of sound waves passing through a complex direction the generation of "viz transverse wave" is commonly seen. In case of parallel travel of vibration, the motion of the also travel as longitudinal wave.
The properties of Sound Waves
Figure 2: sound waves properties
The wave of sound is also classified into two different categories mechanical as well as electromagnetic waves.
The "electromagnetic sound waves" consist of both electric as well as magnetic features that helps to transport the sound waves to another location or medium while mechanical waves need a medium for the transportation of the sound energy to another location or medium (Latha et al. 2020) .
The "electromagnetic sound waves" can travel through a vacuum place where any kind of medium is not available. Moreover, this type of wave does not require any transportation medium for travelling and transporting sound energy at all.
Features of Sound Waves
The features of the sound waves include a type of compression that belongs to a high density. The compression of sound waves refers to the peak of the sound wave while a rarefaction denotes the low-density part of the wave. Though the compression and rarefaction are not looking like sound waves, still it is an important part of the sound waves. In order to measure the wavelength of a sound, these two particles are very essential (Kim et al. 2020) .
Another feature of sound waves is the frequency, which refers to a number that signifies the number of sound waves transported in just a second. The unit of Herts (Hz) measures the frequency of the sound waves.
Medium of sound waves
Figure 3: The wavelength of the sound
- There are two different types of mediums like longitudinal waves refer to the parallel direction. In these medium waves transports through slinky towards the location. The transverse waves are another medium of waves in which the vibration turns to 90 degrees as per the motion waves (Li et al. 2022).
- Another important part of the sound wave is the amplitude of the sound, which refers to the maximum disturbance of magnitude. It is also a form of energy measurement. A higher magnitude level denotes high sound energy.
The application of Sound Waves
For example, in the speaking time, a vibration of waves is generated from the vocal cords that travel to the destination with the help of the movement of air molecules. Besides this, during playing musical instruments the source of the sound is strings or the surface of the instruments. As an example, 60 HZ is the frequency of the radio that refers to 60 waves of sound transformed through a particular medium in just a second (Rivet et al. 2018). The frequency of the sound waves can be measured by the formula "F = 1/T" where F refers to the frequency and the t stands for the total period taken by the sound to travel to another location or medium.
The speed of the sound waves is another essential part of the sound waves that refers to ratio of the sound waves passing through a particular medium by taking the length of the time. The formula that is used to measure the speed of the sound is "C = d/t" where d stands for the distance that the sound travel by the sound waves and r refers to the total time taken to travel the distance. A sound wave is a kind of mechanical wave that is produced by an object, travels and is received by another. A vibrating object mainly creates the sound wave.
Q1. What is the sound refection?
The sound reflection refers to the sound returned from a medium of resistance. The interaction of the particles is mainly created by the vibrating waves that allow the sound to travel to another medium or transport a place to other locations.
Q2. In which mediums the speed of the sound is the highest and lowest?
In water, the speed of the sound waves is around 1481 m/s while in the air the speed is decreased to 343.2 m/s. In the copper medium, the speed of the sound is the highest more than 4600 m/s.
Q3. What is referred to as the reverberation of sound?
The reverberation of sound refers to the reflecting surface. For example, the mechanical sound waves cannot travel; to another location or medium through the vacuum as it is very dependent on other particles as the means of energy transportation.
Q4. What is the wavelength of the sound?
The inner distance of the two parts that are from the compression to another compression or from the rarefaction to another, rarefaction is considered as the wavelength of the sound. The distance that is maintained from the consecutive crest of the sound refers to as wavelength.
Kim, J. Y., Kang, Y. E., Lee, S. I., Kim, J. A., Muthusamy, M., & Jeong, M. J. (2020). Sound waves affect the total flavonoid contents in Medicago sativa, Brassica oleracea and Raphanus sativus sprouts. Journal of the Science of Food and Agriculture, 100(1), 431-440. Retrieved from: https://ejchem.journals.ekb.eg
Latha, C. J., Sankriti, R., David, A., & Srivel, R. (2020). IoT based water purification process using ultrasonic aquatic sound waves. Test Engineering & Management, The Mattingley Publishing Co., Inc. ISSN, 0193-4120. Retrieved from: https://www.academia.edu
Li, F., Cao, H., Jia, Y., Guo, Y., & Qiu, J. (2022). Interaction between Strong Sound Waves and Aerosol Droplets: Numerical Simulation. Water, 14(10), 1661. Retrieved from: https://www.mdpi.com
Nikolić, V., & Said-Houari, B. (2021). Asymptotic behavior of nonlinear sound waves in inviscid media with thermal and molecular relaxation. Nonlinear Analysis: Real World Applications, 62, 103384. Retrieved from: https://arxiv.org
Rivet, E., Brandstötter, A., Makris, K. G., Lissek, H., Rotter, S., & Fleury, R. (2018). Constant-pressure sound waves in non-Hermitian disordered media. Nature Physics, 14(9), 942-947. Retrieved from: https://opg.optica.org
pasco (2022). About Sound Waves. Retrieved from: https://www.pasco.com
sciencelearn (2022). About Sound – visualising sound waves. Retrieved from: https://www.sciencelearn.org.nz [Retrieved on: 17th June 2022]
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