- 1. Seminar on:-SSOOUUNNDDAAssllaamm UUbbaaiidd EE
SSuullaaiimm
2. Inside meOn topicVideos Virtual lab 3. Devices commonly used
4. What is Soundthe particular auditory effect produced by agiven
causethe subjective sensation of hearingsomethingmechanical
vibrations transmitted by anelastic mediumthe sudden occurrence of
an audible eventthe audible part of a transmitted signalAAssllaamm
UUbbaaiidd EE SSuullaaiimm 5. In science:-A form of
energypropogated in theform of longituinalwaves is calledsound 6.
Some britannica stuffMechanical disturbance that propagates as
alongitudinal wave through a solid, liquid, or gas.A sound wave is
generated by a vibrating object.The vibrations cause alternating
compressions(regions of crowding) and rarefactions (regionsof
scarcity) in the particles of the medium. Theparticles move back
and forth in the direction ofpropagation of the wave. The speed
ofsoundthrough a medium depends on themedium's elasticity, density,
and temperature 7. Some britannica stuff. In dry air at 32 F (0 C),
the speed of soundis 1,086 feet (331 metres) per second.
Thefrequency of a sound wave, perceived aspitch, is the number of
compressions (orrarefactions) that pass a fixed point per unittime.
The frequencies audible to the humanear range from approximately 20
hertz to 20kilohertz. Intensity is the average flow ofenergy per
unit time through a given area ofthe medium and is related to
loudness. 8. Audability range20 Hz 20 KHz6 db 120 db 9.
InfrasonicsVibrational or stress waves in elastic mediathat have a
frequency below 20 Hz, thelowest frequency of sound waves that
canbe detected by the human ear. 10. UltrasonicsVibrational or
stress waves in elastic mediathat have a frequency above 20 KHz,
thehighest frequency of sound waves thatcan be detected by the
human ear.They can be generated or detected by
piezoelectrictransducers (see piezoelectricity).
High-powerultrasonics produce distortion in a medium;applications
include ultrasonic welding, drilling,irradiation of fluid
suspensions (as in wineclarification), cleaning of surfaces (such
as jewelry),and disruption of biological structures.
Low-powerultrasonic waves do not cause distortions; usesinclude
sonar, structure testing, and medicalimaging and diagnosis. Some
animals, includingbats, employ ultrasonic echolocation for
navigation. 11. Acoustics Simply saying:- Branch of science dealing
with the study,control, maintanance of auditoryreflection and
ability of a building 12. AcousticsScience of production, control,
transmission,reception, and effects of sound.Its principal branches
are architectural, environmental,musical, and engineering
acoustics, and ultrasonics.Environmental acoustics focuses on
controlling noiseproduced by aircraft engines, factories,
constructionmachinery, and general traffic. Musical acoustics deals
withthe design and use of musical instruments and how musicalsounds
affect listeners. Engineering acoustics concernssound recording and
reproduction systems. Ultrasonicsdeals with ultrasonic waves, which
have frequencies abovethe audible range, and their applications in
industry andmedicine 13. Welcome to my virtual lab 14. Doppler
effect 15. Doppler app 16. Bell jar 17. exeBeatsReflection lab 18.
limitLoud speakerResonancesonarFork 19. Fork 20. R U sound?
