Sound Waves (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
📚Flashcards
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15 cards from this deck
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Practise the cards
15 cards from this deck
Materials sound waves can travel through
Materials sound waves can travel through
Solids, causing vibrations
Function of outer ear
Function of outer ear
Collects sound & directs it down ear canal
What the eardrum is
What the eardrum is
Tightly stretched membrane that vibrates
Effect of compression on eardrum
Effect of compression on eardrum
Moves inward
Effect of rarefaction on eardrum
Effect of rarefaction on eardrum
Moves outward
Eardrum vibration frequency vs incoming sound
Eardrum vibration frequency vs incoming sound
Same frequency
What ossicles are
What ossicles are
Chain of small bones in middle ear
Function of ossicles
Function of ossicles
Amplify sound waves from eardrum
Where ossicle vibrations transfer to
Where ossicle vibrations transfer to
Fluid inside cochlea
What different hair cells respond to
What different hair cells respond to
Different sound frequencies
What hair cells generate
What hair cells generate
Electrical impulse sent to brain
Human hearing range in Hz
Human hearing range in Hz
Hz to kHz
Environmental cause of hearing damage
Environmental cause of hearing damage
Prolonged exposure to loud noises
High frequency hearing with age
High frequency hearing with age
Decreases
Why humans don't hear ultrasound
Why humans don't hear ultrasound
Not necessary for survival