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Sound and Wave Motion
Physics (Science Paper 1) · Chapter 10 · 7. Sound
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- Wave motion; transverse and longitudinal mechanical waves and their comparison; nature of sound waves
- Sound needs a medium; propagation and speed of sound in solids, liquids and gases; factors affecting speed
- Frequency, wavelength, time period and speed; V = f x lambda
- Speed of sound compared with speed of light; thunder and lightning
- Infrasonic, audible and ultrasonic frequencies and their applications; ultrasonic versus supersonic, infrasonic versus subsonic