Components of Sound
Sound Safety
How Sound Travels
The Ear and Hearing
Sounds for Hearing
100
What is one of the things we discussed in class that sound can travel through?
water, air, solids
100
What kinds of sounds can damage our hearing?
Really loud sounds
100
Sound is energy caused by
vibrations
100
As people age, their hearing gets
worse
100
Sound is created by...
vibrations
200
What is volume measured in?
Decibels (dB)
200
Name one way to protect your hearing
turn down the music, go away from the loud sound, wear protective hearing equipment
200
As sound waves travel, they get
weaker
200
The part of the ear where sound is collected or where sound first begins its journey through the ear.
Pinna, or outer ear
200
Someone who cannot hear is called...
deaf, hearing impaired
300
What does pitch tell us?
How high or low something is
300
Name a quiet sound that is safe to listen to
birds, whispers, normal conversation etc...
300
What does sound travel best through?
Solids
300
The three tiny bones in the ear are called...
hammer, anvil and stirrup
300
If someone can't hear, they will often communicate with
Sign Language
400
What is Timbre
The character or quality or a sound
400
What is a type of sound that could damage your hearing instantly?
Jet Take Off, really loud thunder, an explosion
400
What can be used to amplify sound?
speakers, cupping your hands around your mouth
400
How do elephants hear?
They absorb vibrations through their feet
400
Name two animals that use echolocation
Bat and Dolphin
500
Loud and High
500
Above what decibels will hearing damage happen
85 dB
500
What direction does sound travel in?
All directions
500
What is the order that sound travels through in the ear?
Pinna, canal, eardrum, hammer, anvil, stirrup, cochlea, auditory nerve
500
How can echolocation help an animal survive?
Help them find food, help them to navigate and not run into things