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Aug 12, 2016 · chapter sound for class 9 ppt - Download as a PDF or view online for free.
Dec 6, 2018 · sound class 9 physics - Download as a PDF or view online for free.
Dec 28, 2016 · Sound class 9. The document discusses the production, propagation, and characteristics of sound waves. It describes how sound is produced by vibration and travels through air as longitudinal waves of high and low pressure. The key characteristics of sound waves are identified as frequency, amplitude, and speed.
1) Production of sound :- Sound is produced due to the vibration of objects. Vibration is the rapid to and fro motion of an object. Eg :- The sound of human voice is produced due to the vibration of the vocal cords. A stretched rubber band when plucked vibrates and produces sound.
Full syllabus notes, lecture and questions for PPT: Chapter 12 - Sound, Class 9, Science - Class 9 | Plus excerises question with solution to help you revise complete syllabus | Best notes, free PDF download
CBSE Class 9 Science Chapter Sound - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. CBSE class 9 (physics) science chapter:- 12 sound special recap presentation.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for PPT: Sound. Introduction of PPT: Sound in English is available as part of our Science Class 9 for Class 9 & PPT: Sound in Hindi for Science Class 9 course.
