NCERT Solutions for Class 8 Physics Chapter 13 Sound
NCERT Solutions for Sound Class 8 Physics will strengthen the basics of the student about sound. Our experts from Physics have worked hard to prepare these NCERT Solutions for Class 8 Physics Chapter 13 Sound.
NCERT Solutions for Class 8 Physics are extremely helpful to understand the concept while doing various experiments. It will help them for grasping the chapter and to create strong basic knowledge about sound and its related theories.
Our team of expert teachers has created NCERT Solutions for Class 8 Physics Chapter 13 Sound, as per the latest syllabus of CBSE and examination pattern. Toppr app will help you to get complete solutions to the questions of the textbook. We are providing you the free pdf, download links of the NCERT Solutions for Class 8 Physics Chapter 13 Sound.
CBSE Class 8 Physics Chapter 13 – Sound
Sound plays an important role in our life. It helps us to communicate with one another. We hear a different variety of sounds in our surroundings. This chapter of sound is a popular topic among students because the sense of sound is one of the most important senses.
NCERT Solutions for Class 8 Physics Chapter 13 Sound will help students to understand the physics behind sound and its different kind of effects. Various activities related to sound will enhance the level of understanding of the students. Our NCERT Solutions will definitely help them to grasp interesting facts about sound like different speeds of sound, nature of the medium, types of the sound wave, etc. These concepts are also applicable to our day to day life experiences.
Sub-topics covered under NCERT Solutions for Class 8 Physics
- 13.1: The sound is Produced by a Vibrating Body
- 13.2: Sound Produced by Humans
- 13.3: Sound Needs a Medium of Propagation
- 13.4: We Hear Sound through Our Ears
- 13.5: Amplitude, Time Period and Frequency of a Vibration
- 13.6: Audible and Inaudible Sounds
- 13.7: Noise and Music
- 13.8: Noise Pollution
NCERT Solutions for Class 8 Physics Chapter 13
Toppr app presents the NCERT Solutions for Class 8 Physics Chapter 13 Sound in a very systematic, exhaustive and practical way. Different experiments will help them to grasp the concept for better utilization in solving the problems and doing their homework.
Let us discuss the sub-topics in detail.
13.1: The sound is Produced by a Vibrating Body:
The student will see by experiments that a vibrating object produces sound. In many cases, the vibrations are easily visible to us. But mostly their amplitude is so small that we cannot see them. However, we can feel them easily.
13.2: Sound Produced by Humans:
We, humans, produce the sound by the voice box or the larynx. When the lungs force air through the slit then the vocal cords vibrate and therefore produces sound.
13.3: Sound Needs a Medium of Propagation:
The student will learn that sound needs a medium to travel. When the air has been removed completely then it is said that there is a vacuum and hence sound cannot travel through a vacuum. So, the medium is a must for the propagation of sound.
13.4: We Hear Sound through Our Ears:
Human beings can hear the sound by their ears. In this topic, the student will study the shape and structure of human eardrum. Also, they can understand the process of hearing.
13.5: Amplitude, Time Period and Frequency of a Vibration:
Sound is a wave, so it creates vibration in the medium. So it also has some physical parameters like amplitude, time period and frequency to find details about sound.
13.6: Audible and Inaudible Sounds:
Sound waves can be audible or inaudible for human. This fact depends on the frequency of sound generated.
13.7: Noise and Music:
We know that unpleasant sounds are called a noise but the musical sound is one which is pleasing to our ear.
13.8: Noise Pollution.
The student will study the presence of excessive or unwanted sounds in the environment is harmful and called noise pollution.
You can download NCERT Solutions for Class 8 Physics Chapter 13 by clicking on the Download button below
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