Chapter 12 | Part 2 : Sound | Sound Waves | English | Class 9 | #Matricula | #NCERT
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✅ In this video,
✔️ Class: 9th
✔️ Subject: Science
✔️ Chapter: Sound (Chapter 12)
✔️ Topic Name: Class 9 Science Chapter 12 | Sound Waves for Chapter Sound
✔️ Topics Covered in This Video: Explanation From Class 9 Science - Sound Waves for Chapter 12 Sound have been discussed in this Video
Sound is a type of energy that travels through the air or any other medium as a longitudinal wave. It is a mechanical wave that requires a medium to propagate and is caused by the rapid back and forth movement of particles in the medium.
The properties of sound, such as its frequency, wavelength, and amplitude, determine its pitch, volume, and quality. Frequency is the number of waves that pass a fixed point in a certain period of time and is measured in Hertz (Hz). Wavelength is the distance between two consecutive peaks of a wave and is related to frequency. Amplitude is the height of a wave from its center to its peak, and it determines the sound's loudness.
Sound is used in many fields, including communication, music, and medicine. In communication, sound is used to transmit speech and other information, while in music, it's used to produce rhythm and melody. In medicine, sound is used in diagnostic procedures, such as ultrasound, and therapeutic procedures, such as music therapy.
Sound waves are longitudinal waves that travel through a medium, such as air, water, or solids. They are caused by the back and forth movement of particles in the medium and are characterized by their wavelength, frequency, and amplitude.
Wavelength is the distance between two consecutive peaks of a wave and determines the wave's pitch. Frequency is the number of waves that pass a fixed point in a certain period of time and determines the wave's pitch as well. Amplitude is the height of a wave from its center to its peak and determines the wave's loudness.
Sound waves can interact with other waves and objects to produce various effects, such as reflection, refraction, diffraction, and interference. They also can be captured, processed, and transmitted by various devices, such as microphones and speakers.
Sound waves play a crucial role in many fields, including communication, music, and medicine. They are also used in scientific studies, such as the study of the Earth's interior and the exploration of the universe.
In this video, we're going to be talking about sound waves. We'll learn about the different types of sound waves and what they do. We'll also learn how to identify sound waves and understand their meanings.
Also, we'll be discussing the different types of sound waves, their effects on the human ear, and some examples of how sound waves are used in everyday life. By the end of this video, you'll have a better understanding of sound waves and their role in the world around us!
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