Hear with the EAR
Sound waves hit the ______ which is the outer part of the ear that can be bent easily.
Pinna
Which sound wave represents a soft sound and which represents a loud sound? (slide #2)
Loud = #1
Soft = #2
High Vibration= ______ Sound
Loud
People communicate through music. What are the three instrament families ? (Slide #6)
Wind, Percussion, String
What is one way you can protect your ears when you are around loud noises?
Ear Plugs / Ear Muffs
Sound waves are funneled through the ear canal, and hits this to cause a vibration through the middle ear.
Eardrum
Which sound wave represents a high pitch sound and which represents a low pitchsound? (slide #3)
#1 =High Pitch
#2= Low Pitch
Low Vibration = _______ Sound
Soft or Quiet
When a person is talking; air travels from the lungs and vibrates _______ cords in their ____ ______.
Vocal, Voice Box
The lawn mower has a dB level of 97dB. Is this a
a) Safe Sound
b) Cautious Sound
c) Dangerous Sound
b) Cautious Sound
The inner ear has a coiled tube that looks like a snails shell, and is filled with fluid and nerve endings.
Cochlea
Which sound wave represents a low frequency sound wave and which represents a high frequency sound wave? (slide #4)
#1= High Frequency
#2 = Low Frequency
High Frequency = High Pitch = _______ Vibration
Fast
Dogs can hear higher ______ sounds than humans.
Pitched
Constant exposure to loud noises will result in hearing change and possibly hearing loss due to damage to the delicate hairs in the ________.
Cochlea
The nerve that sends the message to our brain from our ear is called the ________.
Auditory Nerve.
When you amplify the a sound, the sound wave will _______ in size.
increase
Low Frequency = Low Pitch = _______ Vibration
Slow
_______ is a technique used by various animals such as bats and dolphins to “see” and determine the location of objects around them by using reflected sound waves.
Echolocation
The ______ is made of a thin membrane that vibrates when you hear sound. Dangerous levels of sound cause this part of your ear to burst or rupture.
Eardrum
The three tiny bones in the middle of the ear are call the ______, _______, and ______.
Hammer, Anvil, Stirrup
Sound waves can have different amplitudes or loudness.
Big sound waves are louder and have a _____ amplitude.
Higher
Sound travels through ______ _______.
Sound Waves
What is one way people can communicate with out making sound?
Sign Language
Sound travels fastest through____ and slowest through ____ and ______ because the particles are closest together in solids and furthest apart in gases and liquids.
Solid, Liquid, Gas