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Topic Content:
- Meaning/Sources of Sound
- Transmission of Sound
Sound is a form of energyEnergy is the ability to do work. Energy exists in several forms such as heat, kinetic or mechanical energy, light, potential energy, and electrical energy. Units of Energy: The SI unit... More which stimulates the sensation of hearing. It is produced by bodies that vibrate or shake, for example, if a vibrating tuning fork is placed over a column of air, the fork sets the air into vibration, and sound is transmitted through matter such as air or water.
A tuning fork is a small steel instrument, which is used to tune instruments, by striking it against something to produce a note of fixed musical pitch. The sound they make is totally pure.
Vibrating bodies/objects produce sound and examples include:
- A plucked string e.g. a guitar.
- Vibration of solid when struck e.g. talking drum, bells.
- Compression and rarefactions of air column: wind instruments.
Transmission of Sound:
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