Humans & Animals
This part of the funnels sound into the ear canal...
What is the Pinna?
Tapping a pencil would be an example of making...
What is sound?
Exposing your ears often to loud sounds can lead to...?
What is hearing damage?
Sound can travel through__________, ___________, and ___________.
What is SOLID, LIQUID, and GAS?
This part of the ear is named after an animal.
What is the cochlea?
This refers to the frequency of sound waves
What is pitch?
Name an example of a pleasant and an unpleasant sound.
(answers vary)
What is the difference between absorbing and reflecting sound?
Absorbing = the sound penetrates the material
Reflecting = the sound bounces off the surface
Name two jobs where it would be important to have great hearing and explain why.
(answers vary)
Loudness of sound is measured in this unit.
What is decibels?
Humans can hear in the range of ____ to _____ Hz.
20-20,000
Do high frequency sound waves make high or low sounds?
What is high?
Bats use this in order to navigate through spaces...
What is echolocation?
This is the number of sound waves that are produced in one second.
What is frequency?
True or False: Once your hearing is gone, you can get it back.
What is false?
Sound travels fastest through solids because...
What is: The particles in solids are close together so the sound can travel quickly from particle to particle?
Name all the parts of the ear.
What is pinna, ear canal, ear drum, hammer, anvil, stirrup, semicircular canal, cochlea, auditory nerve
The process of increasing the volume of a sound is________.
What is amplification?
Name 3 sounds that can damage our hearing?
What is,
A Plane taking off
Concerts
Construction machines
A sound wave is high and close to the next one. What kind of sound is it?
What is loud and high pitched?