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Sound Notes
Sound Notes

... • A sound wave is a longitudinal wave generated by a vibrating material. • It is then carried through a medium and transfers energy. • Sound waves travel in all directions away from their source • Sound has to have a medium • Sound can not travel in a vacuum ...
Auditory System
Auditory System

... 1. The stimulus for hearing is sound, a vibration (actually compression and rarefaction) of the air molecules. The acoustic stimulus can be represented by a sound wave. Physical Entity (sensation) Frequency Amplitude (intensity) ...
Eustachian tube
Eustachian tube

... Eustachian tube - a canal that links the middle ear with the throat area. The eustachian tube helps to equalize the pressure between the outer ear and the middle ear. Having the same pressure allows for the proper transfer of sound waves. The eustachian tube is lined with mucous, just like the insi ...
The Auditory Sense: Hearing
The Auditory Sense: Hearing

... • Pitch refers to the frequency of sound waves measured in hertz • The shorter the wavelength, the higher the frequency (pitch) • The longer the wavelength, the lower the frequency(pitch) ...
Hearing part I
Hearing part I

... • Audition or hearing is the sense that allows us to communicate and hence interact with other organisms throughout the world • Sound waves are the adequate stimulus for hearing • The ear is the organ of hearing ...
TSM54 - The Auditory Pathway
TSM54 - The Auditory Pathway

... o Azimuth – in the horizontal plane  Interaural onset time or phase difference for low frequency sounds  Interaural sound level difference for high frequency sounds Interaural sound level differences are only detected for high frequency sounds because: o If the wavelength is greater than the diame ...
Chapter 24 –Sound
Chapter 24 –Sound

... • Harmony is the study of how sounds work ...
Hearing Module 14 - Clayton Valley Charter High School
Hearing Module 14 - Clayton Valley Charter High School

... Place Theory suggests that sound frequencies stimulate basilar membrane at specific places resulting in perceived pitch. ...
Physical science 20 – Sound Review
Physical science 20 – Sound Review

... 11. A student is standing at the edge of a cliff and yells something. If the cliff is 45 m away from another face and the air temperature is 45°C, how long did it take for the sound to reach the cliff, echo, and return to the student? 12. Describe using the terms, diffraction and reflection, why yo ...
Final Revision
Final Revision

... 5- Sound waves are ……… waves which can not travel through…….. 6- The colored whorl of the flower is called.....…... each leaf is called………. 7- Light reflection is the…………. of light waves in the same medium on a ………… surface. 8- The first law of sound reflection, the angle 2m of……………….. = the angle o ...
Sound Waves
Sound Waves

... If a tree falls in the forest and no one is around to hear it does it make a sound? ...
Sound, the Auditory System, and Pitch Perception
Sound, the Auditory System, and Pitch Perception

... that the pressure changes repeat. Humans can perceive frequencies in the range from 20 Hz to 20,000 Hz. ...
Y8_Sound_Key Words - Ralph Thoresby School
Y8_Sound_Key Words - Ralph Thoresby School

... less strong than in solids. The particles can move past each other in a liquid. ...
Review Quiz #3: Sensation and Perception
Review Quiz #3: Sensation and Perception

... 9. The __________________________ occurs when two or more alternating blinking lights create the appearance of movement. 10. _________________________ are distance cues of visual perception which include relative size, relative motion and texture gradient. _________________________ are depth cues wh ...
Sound - PAMS-Doyle
Sound - PAMS-Doyle

... liquids or gases, the medium returns to its original position ex. Running on pavement or sand • Sound travels best in solids, then liquids, and worst in gases because the molecules are closer together in solids ...
SOUND
SOUND

... 2) The source of the sound needs to overcome the pressure of the compressed waves in order to go faster than the speed of sound 3) Once the source is going faster than the sound waves (supersonic speed) the waves trail behind the object. 4) At the outer edges the waves combine to form a ____________ ...
A.P. Psychology 4 (D)
A.P. Psychology 4 (D)

... Loudness Measured in decibels ...
AUDITORY SENSATION
AUDITORY SENSATION

... The frequency of a sound wave determines the _______________________ of the sound we perceive. The amplitude of a sound wave determines the _______________________ of the sound we perceive. The waveform of a sound wave determines the _______________________ of the sound we perceive. Hearing the Soun ...
Module 10
Module 10

... Cochlea Basilar membrane Hair cells Auditory nerve Semicircular canals (3) – motion sensors Otoliths- orientation & acceleration sensors ...
PSYC 330: Perception
PSYC 330: Perception

... • Why do different parts of the basilar membrane get displaced differently relative to frequency? • Base is stiffer  more reaction to higher frequency • Apex is wider and more flexible  more reaction to lower frequency ...
What is sound?
What is sound?

... Fire alarms are loud. Whispers are quiet. Sopranos sing high. Tubas play low. every one has different voices. ...
Y8_Sound_summary - Ralph Thoresby School
Y8_Sound_summary - Ralph Thoresby School

... Sound can damage the ears if it is too loud or goes on for too long. Loud sounds can damage the eardrum or the cochlea. Unpleasant sound is often called noise. We can measure how loud a sound is by using a sound intensity meter. This is an instrument which measures the loudness of a sound in decibel ...
Hearing Conservation
Hearing Conservation

... Not being able to: Hear what the other person is saying? Listen to the sound of music? Listen to the sound of nature? Being afflicted with: Uncomfortable ringing in your ears? Abnormal sounds that interfere with your sleep? ...
PsychSim 5: THE AUDITORY SYSTEM Name: Kiet
PsychSim 5: THE AUDITORY SYSTEM Name: Kiet

... Name: Kiet Luong____________________________ Section: 6_________________ Date: ____November 7, 2011_____________________________ This activity explores how we hear and how the physical nature of the sound wave determines the quality of the sound experience. ...
Discussion Questions
Discussion Questions

... decibel frequency wavelength 7. An anti-noise system reduces noise through _____. (Choose only one answer) listening to music wearing ear plugs hearing sound waves canceling out sound waves 8. Sound is produced when a person strikes the keys of a piano because hammers hit strings in the piano, causi ...
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Sound



In physics, sound is a vibration that propagates as a typically audible mechanical wave of pressure and displacement, through a medium such as air or water. In physiology and psychology, sound is the reception of such waves and their perception by the brain.
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