Sound Basics
Sound travels in ______.
Waves
Sound enters the ______ first.
Ear canal.
After the eardrum vibrates, what moves next?
The tiny bones
What organ helps us understand sound?
Brain.
Who hears better: cats or humans?
Cats.
Sound can travel through air, liquid and ______.
Solid.
Name one tiny bone.
Hammer / Anvil / Stirrup.
Where do vibrations go after the stirrup?
Into the cochlea.
What sends sound signals to the brain?
Nerves.
Do horses hear better or worse than people?
Better.
Which travels faster: sound in air or water?
Water.
What part looks like a snail shell?
Cochlea
What moves inside the cochlea?
Liquid.
Where are the nerves located?
In the cochlea.
Sound travels faster in: air or liquid?
Liquid.
What part of the ear does sound hit first inside the head?
Eardrum.
What vibrates when sound hits it?
Eardrum.
What moves after the liquid moves?
Nerves.
What creates the signals in the ear?
Moving nerves.
Which animals hear high frequencies better?
Cats and rabbits.
Why does sound travel fastest in solids?
Particles are closest together.
What do the three tiny bones do?
Make the vibration stronger.
What do nerves send to the brain?
Signals.
Why are cochlea nerves important?
They change vibrations into signals.
Why do animals hear better than humans?
They detect higher frequencies.