Sound Flashcards
Sound travels through air as a series of what..
Compressions and rarefactions
When do compressions occur
When particles are closest together
Rarefactions occur when..
Particles are furthest apart
Sound travels fastest in..
Solids
Sound travels slowest in….
Gases
What does sound not at all travel in…
A vacuum
What 3 parts make up the outer ear
Pinna
Ear canal
Eardrum
What is the function of the pinna
Collects sound waves and channels them into the ear canal
What is the function of the ear canal
Transports sound from outer ear to eardrum
What is the function of the eardrum
Send vibrations to the inner ear
What is the name of the 3 small bones in the middle ear?
Stapes
Incus
Malleus
What is the purpose of the middle ear?
It transmits sound for outer ear into inner ear
What is the Eustachian tube for
Equalises pressure on the ear drum
Where do the vibrations go beyond the oval window
The cochlea
What is found in the cochlea
Fluid and hairs (fibres)