NCERT Solutions for Class 9 Science Chapter 11 Sound - FREE PDF Download
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NCERT Solutions for Class 9 Science Chapter 11 Sound
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FAQs on NCERT Solutions for Class 9 Science Chapter 11 Sound
1. What is Sound from class 9 science ch 11 question answers and How it is Produced? Give an Example.
Sound is considered a form of energy that is produced due to the vibration of objects. Vibration refers to the fast to and-fro motion of a particular object. It is said that when a body vibrates due to some reason, it causes disturbance in the medium by the particles. For example, when a rubber band is stretched, it vibrates and produces some sound. In this case, the vibrating body can travel through the medium, but the particles do not show any motion and stay still without moving forward. This is how sound is produced.
2. List out the topics included in NCERT Solutions for ch 11 Science Class 9.
Vedantu's NCERT solutions class 9 science chapter sound covers all the most important and basic concepts. The solutions to application-based questions and numerals provided by Vedantu are easy to follow and understand. The topics that have been covered by expert teachers of Vedantu include the Production And Propagation Of Sound, Characteristics Of The Sound Wave, Wavelength, Frequency, period, Amplitude, Velocity, Speed Of Sound In Various Mediums, The Reflection Of Sound, Echo And Reverberation. To access the best NCERT solutions for Class 9 Science Chapter 11, visit the Vedantu website.
3. Does the NCERT Solutions for class 9 science chapter sound the best study material for the students?
Vedantu's NCERT Solutions for Class 9 Science Chapter 11 is undoubtedly the best study material for students. Vedantu provides quality answers while strictly adhering to the latest CBSE patterns and guidelines. The study material and solutions provided here are prepared by expert teachers. Follow these NCERT Solutions to score higher than before and make your exam preparation more well-structured. You can download the solutions for Chapter 11 of Class 9 Science free of cost from the Vedantu website.
4. What are the real-time applications of Sound from class 9 science sound question answers?
Sound is an essential part of our everyday life and has several real-time applications. Reflection of sound helps in measuring the distance and speed of underwater objects. The stethoscope also works on the principle of reflection of sound. Inside a stethoscope, multiple reflections of sound take place. Through these multiple sound reflections, the sound of the patient’s heartbeat can reach the doctor’s ear.
5. What's the underlying concept of class 9 science chapter 11?
Through Chapter 11, Sound, important topics such as the Production And Propagation Of Sound, Medium, Waves, Characteristics Of Sound, Range Of Sound, The Reflection Of Sound, and Its Applications are Covered. All these topics give us an overall and complete understanding of the phenomenon of sound in Science. The application-based learning of sound concepts through the Vedantu study materials will make students more confident and well-prepared for the examination.
6. What are the most important definitions that come in class 9 science chapter sound question answers?
The following terms are important in Chapter 11, Sound from an examination point of view; Sound, Medium, Wave, Echo, Reverberation, Frequency, Period, and Amplitude of the Sound. For the topic applications of sound, the important terms are Echocardiography and Echosonography. For the topic of the structure of the ear, you should be well-versed with the definition of every part of the ear through which sound travels until it finally reaches the eardrum.
7. What are the different types of sound waves from sound class 9?
Longitudinal waves: Sound waves are longitudinal waves, meaning the particles in the medium vibrate back and forth in the same direction as the wave propagation.
Transverse waves: In contrast, light waves are transverse waves, where the particles vibrate perpendicular to the wave's direction.
8. What is the difference between sound intensity and loudness described in sound class 9 questions and answers?
Sound intensity: Refers to the amount of sound energy per unit area passing through a specific point each second. It's measured in watts per square meter (W/m²).
Loudness: This is the subjective perception of sound intensity by the human ear. Sounds with higher intensity are generally perceived as louder.
9. What is the Doppler effect from class 9 sound question answers?
The Doppler effect describes the change in frequency of a wave perceived by an observer relative to the source of the wave. For example, the sound of a siren appears to change pitch as it approaches and then recedes from an observer.