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456498
Sound
Descripción
SPS Scholarship (Sound) Physics Mapa Mental sobre Sound, creado por frenchmouse0§1 el 28/12/2013.
Sin etiquetas
physics
sound
physics
sound
sps scholarship
Mapa Mental por
frenchmouse0§1
, actualizado hace más de 1 año
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Menos
Creado por
frenchmouse0§1
hace casi 11 años
69
2
0
Resumen del Recurso
Sound
Waves
Particle Waves
Particles are forced together or pushed apart
This is a longitudinal wave
Sound can be translated into transverse waves using an oscilloscope
The larger the amplitude, the louder the volume
The larger the wavelength, the lower the pitch
Hertz (Hz) is a frequency measure. It is the amount of waves in a second
Therefore it can tell us the pitch - the larger the Hz, the higher the pitch
The Ear
The ear has three sections:
Outer Ear
The inner ear collects sound which vibrates the eardrum
Sound is collected by the Pinna (cartilage)
This magnifies 3x-4x
Middle ear
Sound travels along three bones
This amplifies the sound 22x
It is filled with air
It is joined to the back of the throat
This is to relieve pressure
Both sides of the eardrum must have similar air pressure levels
Inner ear
This is made up of two main structures
Cochlea
This detects sound
The ossicles create waves in the fluid
Sensors detect the waves and send nerve impulses to the brain
3 Semi-circular canals
These are placed in each plane of movement
X - Across
Y - Up
Z - Along
Fluid filled
Properties
Sound is not part of the electromagnetic spectrum
It travels as a particle wave
Therefore, it requires the vibration of particles and objects
Sound does not travel in space or a vacuum
Recursos multimedia adjuntos
L_Sound_waves (image/png)
Sound_waves (image/png)
Cochlea (image/png)
The_ear (image/png)
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