Read and download NCERT Class 9 Science Sound Questions in NCERT book for Class 9 Science. You can download latest NCERT eBooks chapter wise in PDF format free from Studiestoday.com. This Science textbook for Class 9 is designed by NCERT and is very useful for students. Please also refer to the NCERT solutions for Class 9 Science to understand the answers of the exercise questions given at the end of this chapter
NCERT Book for Class 9 Science Chapter 12 Sound
Class 9 Science students should refer to the following NCERT Book Chapter 12 Sound in Class 9. This NCERT Book for Class 9 Science will be very useful for exams and help you to score good marks
Chapter 12 Sound NCERT Book Class 9
SOUND
1. Note is a sound
(a) of mixture of several frequencies
(b) of mixture of two frequencies only
(c) of a single frequency
(d) always unpleasant to listen
2. A key of a mechanical piano struck gently and then struck again but much harder this time. In the second case
(a) sound will be louder but pitch will not be different
(b) sound will be louder and pitch will also be higher
(c) sound will be louder but pitch will be lower
(d) both loudness and pitch will remain unaffected
3. In SONAR, we use
(a) ultrasonic waves
(b) infrasonic waves
(c) radio waves
(d) audible sound waves
4. Sound travels in air if
(a) particles of medium travel from one place to another
(b) there is no moisture in the atmosphere
(c) disturbance moves
(d) both particles as well as disturbance travel from one place to another.
5. When we change feeble sound to loud sound we increase its
(a) frequency
(b) amplitude
(c) velocity
(d) wavelength
6. A girl is sitting in the middle of a park of dimension 12 m × 12 m. On the left side of it there is a building adjoining the park and on right side of the park, there is a road adjoining the park. A sound is produced on the road by a cracker. Is it possible for the girl to hear the echo of this sound? Explain your answer.
7. Why do we hear the sound produced by the humming bees while the sound of vibrations of pendulum is not heard?
8. If any explosion takes place at the bottom of a lake, what type of shock waves in water will take place?
9. Sound produced by a thunderstorm is heard 10 s after the lightning is seen. Calculate the approximate distance of the thunder cloud. (Given speed of sound = 340 m s–1.)
10. Why is the ceiling and wall behind the stage of good conference halls or concert halls made curved?
11. Represent graphically by two separate diagrams in each case
(i) Two sound waves having the same amplitude but different frequencies?
(ii) Two sound waves having the same frequency but different amplitudes.
(iii) Two sound waves having different amplitudes and also different wavelengths.
11. Establish the relationship between speed of sound, its wavelength and frequency. If velocity of sound in air is 340 m s–1, calculate
(i) wavelength when frequency is 256 Hz.
(ii) frequency when wavelength is 0.85 m.
12. Draw a curve showing density or pressure variations with respect to distance for a disturbance produced by sound. Mark the position of compression and rarefaction on this curve. Also define wavelengths and time period using this curve.
Please refer to attached file for NCERT Class 9 Science Sound Questions
| NCERT Class 9 Science Matter In Our Surroundings |
| NCERT Class 9 Science Matter In Our Surroundings Questions |
| NCERT Class 9 Science Is Matter Around Us Pure |
| NCERT Class 9 Science Is Matter Around Us Pure Questions |
| NCERT Class 9 Science Atoms And Molecules |
| NCERT Class 9 Science Atoms And Molecules Questions |
| NCERT Class 9 Science Structure Of The Atom |
| NCERT Class 9 Science Structure Of The Atom Questions |
| NCERT Class 9 Science The Fundamental Unit Of Life |
| NCERT Class 9 Science The Fundamental Unit Of Life Questions |
| NCERT Class 9 Science Tissues |
| NCERT Class 9 Science Tissues Questions |
| NCERT Class 9 Science Diversity In Living Organisms |
| NCERT Class 9 Science Diversity In Living Organisms Questions |
| NCERT Class 9 Science Motion |
| NCERT Class 9 Science Motion Questions |
| NCERT Class 9 Science Force And Laws Of Motion |
| NCERT Class 9 Science Force And Laws Of Motion Questions |
| NCERT Class 9 Science Gravitation |
| NCERT Class 9 Science Gravitation Questions |
| NCERT Class 9 Science Work And Energy |
| NCERT Class 9 Science Work And Energy Questions |
| NCERT Class 9 Science Sound |
| NCERT Class 9 Science Sound Questions |
| NCERT Class 9 Science Why Do We Fall Ill |
| NCERT Class 9 Science Why Do We Fall Ill Questions |
| NCERT Class 9 Science Natural Resources |
| NCERT Class 9 Science Natural Resources Questions |
| NCERT Class 9 Science Improvement In Food Resources |
| NCERT Class 9 Science Improvement In Food Resources Questions |
| NCERT Class 9 Science Solutions and Answers |
Science NCERT Book Class 9 Chapter 12 Sound
The above NCERT Books for Class 9 Science Chapter 12 Sound have been published by NCERT for latest academic session. The textbook by NCERT for Chapter 12 Sound Science Class 9 is being used by various schools and almost all education boards in India. Teachers have always recommended students to refer to Chapter 12 Sound NCERT etextbooks as the exams for Class 9 Science are always asked as per the syllabus defined in these ebooks. These Class 9 Chapter 12 Sound book for Science also includes collection of question. We have also provided NCERT solutions for Class 9 Science which have been developed by teachers of StudiesToday.com after thorough review of the latest book and based on pattern of questions in upcoming exams for Class 9 students.
NCERT Book Class 9 Science Chapter 12 Sound
The latest NCERT book for Chapter 12 Sound pdf have been published by NCERT based on the latest research done for each topic which has to be taught to students in all classes. The books for Class 9 Science Chapter 12 Sound are designed to enhance the overall understanding of students. All Class 9 NCERT textbooks have been written in an easy to understand language which will help to enhance the overall level of Class 9 students.
Chapter 12 Sound NCERT Book Class 9 Science
As the students of Class 9 need the books for their regular studies, we have provided all NCERT book for Chapter 12 Sound in pdf here for free download. All pdf NCERT books available here for Class 9 will help them to read on their mobile or computers. They can take a print of the Class 9 Science NCERT Book Chapter 12 Sound pdf easily and use them for studies. The NCERT textbooks for Class 9 Science have been provided chapter-wise and can be downloaded for free of cost.
Class 9 Science Chapter 12 Sound NCERT Book
Along with Science Class 9 NCERT Book in Pdf for Chapter 12 Sound we have provided all NCERT Books in English Medium for Class 9 which will be really helpful for students who have opted for english language as a medium. Class 9 students will need their books in English so we have provided them here for all subjects in Class 9.
Class 9 Chapter 12 Sound NCERT Book Science
For Class 9 Chapter 12 Sound we have provided books for students who have opted for Hindi and Urdu medium too. You can click on the links provided above to download all Hindi medium Class 9 Science Chapter 12 Sound book in easy to read pdf format. These books will help Class 9 Science students to understand all topics and also strictly follow latest syllabus for their studies. If you are looking to download the pdf version of Class 9 Science Chapter 12 Sound textbook issued by NCERT then you have come to the correct website
You can download the NCERT Book for Class 9 Science Chapter 12 Sound for latest session from StudiesToday.com
Yes, you can click on the link above and download chapter wise NCERT Books in PDFs for Class 9 for Science Chapter 12 Sound
Yes, the NCERT Book issued for Class 9 Science Chapter 12 Sound have been made available here for latest academic session
You can easily access the link above and download the Class 9 NCERT Books Science Chapter 12 Sound for each chapter
There is no charge for the NCERT Book for Class 9 Science Chapter 12 Sound you can download everything free
Regular revision of NCERT Books given on studiestoday for Class 9 subject Science Chapter 12 Sound can help you to score better marks in exams