NCERT Solutions For Class 8 Science Chapter 13 Sound
NCERT solutions for class 8 science chapter 13 Sound: In day to day life, you hear a variety of sounds. Have you ever thought that how sounds are produced? What makes male and female voices so different from each other? You will get the know answers to these questions in solutions of NCERT class 8 science chapter 13 sound. After studying the chapter attempt NCERT exercise of science chapter 13. For better preparation CBSE NCERT solutions for class 8 science chapter 13 sound are helpful.
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You must have observed that when we take a steel bucket and hit it with a small hammer, vibrations are caused. These vibrations are responsible for the production of sound. Production of sound in humans is mainly due to the presence of a voice box or larynx. It is found to be present at the upper end of the windpipe. You will understand the structure of the voice box and mechanism of production of sound by voice box after studying this chapter. The solutions of NCERT helps students in solving homework problems. The NCERT solutions for class 8 science chapter 13 sound give an explanation to 13 exercise questions.
NCERT solutions for class 8 science chapter 13 sound: Solved Exercise Questions
NCERT Solutions For Class 8 Science- Chapter-wise
| Chapter 1 ||Crop Production and Management |
| Chapter 2 ||Microorganisms Friend and Foe In Microorganisms |
| Chapter 3 ||Fibres and Plastics |
| Chapter 4 ||Materials Metals and Non Metals |
| Chapter 5 ||Coal and Petroleum |
| Chapter 6 ||Combustion and Flame |
| Chapter 7 ||Conservation of Plants and Animals |
| Chapter 8 ||Cell Structure and Functions |
| Chapter 9 ||Reproduction in Animals |
| Chapter 10 ||Reaching the Age of Adolescence |
| Chapter 11 ||Force and Pressure |
| Chapter 12 ||Friction |
| Chapter 13 ||Sound |
| Chapter 14 ||Chemical Effects of Electric Current |
| Chapter 15 ||Some Natural Phenomena |
| Chapter 16 ||Light |
| Chapter 17 ||Stars and the Solar System|
| Chapter 18 ||Pollution of Air and Water|
NCERT Solutions For Class 8: Subject Wise
NCERT solutions for class 8 science chapter 13 Sound: Points to remember
- Sound requires a medium to travel. This medium can be a gas, liquid or solid. Questions are discussed based on this concept in the NCERT solutions for class 8 science chapter 13 sound.
- Hearing is a process in which eardrum senses vibration and send signals to the brain.
- Larger the amplitude, the louder will be the sound. Larger the frequency more will be the pitch
- Some sounds are pleasant as that of a musical instrument and some are unpleasant as that coming from horns, some home appliances and factories, etc.
- The range of audible frequency for humans is 20 to 20000 Hz and more you will get in NCERT.
- Noise pollution is caused due to excessive unpleasant sounds. This can cause various health problems. Questions based on this are discussed in CBSE NCERT solutions for class 8 science chapter 13 sound.
Also Check NCERT Books and NCERT Syllabus here:
Frequently Asked Question (FAQs) - NCERT Solutions For Class 8 Science Chapter 13 Sound
Question: What is frequency?
Frequency is number of cycles per second. Frequency is measured in Hz. 1Hz=1/1 second
Question: What produces sounds in human?
The vibration of vocal cords inside the larynx produce sound
Question: What is the relation between pitch and frequency
Pitch is proportional to frequency.
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