Curriculum
- 1 Section
- 18 Lessons
- 96 Weeks
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- Sound18
- 2.1sound (introduction)
- 2.2objectives
- 2.3objectives
- 2.4sound is produced by vibrating body
- 2.5how is sound produced by human beings
- 2.6sound travels
- 2.7sound travels
- 2.8we hear sound through our ears
- 2.9amplitude , time period and frequency
- 2.10frequency of sound
- 2.11frequency of sound
- 2.12pitch
- 2.13audible sounds
- 2.14music and noise
- 2.15noise pollution and its control
- 2.16summary
- 2.17summary
- 2.18summary
