Changing Pitch and Loudness
If you have a skinny elastic and a fat elastic, which one will make the higher pitch?
Skinny elastic
Where is the pinna?
Outer ear
Is the loudness of normal conversation safe, risky, or unsafe for our ears?
Safe
What is sound caused by?
Vibrations!
If you have a skinny elastic and a fat elastic, which one will make the lower pitch?
Fat elastic
Is a 10 decibel sound safe, risky, or unsafe for our ears?
Safe
When something is moving back and forth, that is called...
Vibrations
Fast vibrations produce a ___________ pitch sound
High
What are the names of 3 ossicles?
hammer, stirrup and anvil
Is the sound of someone screaming safe, risky, or unsafe for our ears?
What is sound measured in?
We use a sound meter and the sound meter measures the sound in decibels.
If you are using panpipes, which pipe will have the lower pitch?
The longer pipe
Sound goes from the cochlea, through the auditory nerve, to your __________ so you can hear.
Brain
What are some sounds that can damage our hearing?
-Plane taking off -Concerts -Construction machines
What happens to the volume of the sound as we move AWAY from the sound source?
It gets quieter
A sound that is producing large vibrations will be quiet or loud?
How does the ear work?
Sound enters through the outer ear, goes through the ear canal, makes the eardrum vibrate, makes the ossicles vibrate, vibrates the hairs in the cochlea, and then sends a signal through the auditory nerve to the brain
What are some ways you can prevent damage to your ears?
-Wear ear protection -Don't put anything in your ears -Cover your ears around loud noises
What happens to the volume of the sound as we move CLOSER to the sound source?
It gets louder