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Sound Notes. Sound is a Wave Sound is a type of ____________________ Sound is a wave that is produced by a ___________________ and travels through matter. A ___________________ is a rapid, back-and-forth motion. - PowerPoint PPT Presentation
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Sound Notes
Sound is a Wave Sound is a type of ____________________
Sound is a wave that is produced by a ___________________ and travels through matter.A ___________________is a rapid, back-and-forth
motion.Because the medium vibrates in the same direction as the wave travels, _____________________and ____________________.
How sound waves are produced.A vibrating object __________________ on the medium around it and sends out ___________________________________.Your vocal cords make sound waves.
The highest frequency that humans can hear is 20,000 hertz. Above 20,000 hertz the waves are called _______________
________________________________ Pitch depends on the ________ of a sound wave.Pitch is the ______________________ of a sound.A low-frequency wave with a _____ wavelength =
_____________.A high-frequency wave with a _____ wavelength =
_____________.
The motion of the source of a sound affects its pitch._____________ - the changing in perceived pitch that occurs when the source or the receiver of a sound is moving.
IHow the Ear Detects Sound
Sound waves vibrate particles The ____________ rapidly. The particles in
the air in front of the drum become compressed. When the drum moves the opposite way, a space opens up between the _____________. These are the compressions and _______________ which are Longitudinal waves.
Sound is a ______________wave (must have a _______________) and cannot travel through a vacuum (___________________).
Sound travels faster through __________ than in gases or ________.
Intensity Determines Loudness
Intensity of a sound is the ________________ the sound wave has.
A ___________ is the unit used to measure sound intensity.
________________ is the increasing of the strength of an electrical signal and is used to increase the intensity of a sound wave.
Intense sound can damage hearing.
Transverse Wave w/ High Amplitude
Transverse Wave with a Long Wavelength
Transverse Wave w/ a low frequency.
Transverse wave w/ little energy.
Transverse wave w/ little energy.
Transverse wave w/ a high pitch.
Longitudinal wave w/ high frequency
Longitudinal wave w/ high amplitude.