CBSE Class 9 Science, Chapter 10: Sound Waves: Characteristics and Applications
NCERT Exploration, pages 184–207. 20 topics, about 10 days of study at 20 to 30 minutes a day.
Topics in this chapter, with textbook pages
- Introductionpage 184
- 10.1Production of Soundpages 184–185
- 10.1.1Tuning forkpage 186
- 10.2Propagation of Soundpages 186–187
- 10.2.1Sound needs a medium to propagatepages 187–188
- 10.3Sound Wavespages 188–191
- 10.4Energy of Sound Wavespages 191–192
- 10.5Graphical Representation of a Sound Wavepages 192–193
- 10.6Characteristics of a Sound Wavepage 194
- 10.6.1Wavelength, frequency and time periodpages 194–195
- 10.6.2Amplitude and intensity of the sound wavespages 195–196
- 10.6.3Speed of Soundpages 196–198
- 10.6.4Human perception of soundpages 198–200
- 10.7Reflection of Soundpage 200
- 10.7.1Echopage 201
- 10.7.2Reverberationpages 201–202
- 10.8Ultrasonic and Infrasonic Waves, and their Applicationspage 202
- 10.8.1Echolocationpages 202–203
- At a Glancepage 204
- Revise, Reflect, Refinepages 204–206
Teach this chapter at home
- A day-by-day plan with the exact textbook pages for each day.
- A step-by-step script for each day, so you know what to say and ask, written from the NCERT chapter.
- A quiz at the end and a written task you can check with a photo of the notebook.
Textbook pages follow the 2026-27 NCERT print and can differ by a page or two in older prints. Adhian Gurus is not affiliated with NCERT or CBSE.