These are two ways that can cause damage to hearing.
What are loud music and puncturing the eardrum?
100
Sound is this kind of wave.
What is a longitudinal wave?
100
This is what happens if the wavelength of a sound wave is increased.
What is the frequency decreases?
100
This is how fish "hear".
What is they can hear pressure changes through ridges on their body?
200
A narrow region leading from the outside of the ear to the eardrum.
What is the ear canal?
200
These are the three main sections of the ear.
What are the outer, middle, and inner ear?
200
These are the two parts of a sound wave.
What are the compression and rarefaction?
200
This unit measures the loudness of different sounds.
What are decibels?
200
They can fit onto the head of a penny.
What are the hammer, anvil, and stirrup?
300
The amount of mass in a given volume.
What is density?
300
This is the part of the ear that looks like a snail.
What is the cochlea?
300
These are the three factors that affect the speed of sound.
What are temperature, stiffness, and density?
300
This is the level at which damage can be done to hearing.
What is 100 dB?
300
This travels at 1,130 feet per second, or 770 miles per hour.
What is sound?
400
The change in frequency of a wave as its source moves in relation to an observer.
What is the Doppler Effect?
400
This is connected to the inner ear and is the connecting point to the brain.
What is the auditory nerve?
400
This is the direction that a longitudinal wave moves in a medium.
What is parallel to the direction to the waves?
400
This is the amount of tiny hair cells inside the cochlea.
What is 10,000 +?
400
This animal hears through the jaw bone and through a traditional inner ear. This Enables them to have two distinct hearing mechanisms, which helps them hear and catch prey.
What are snakes?
500
The human perception of how much energy a sound wave carries.
What is intensity?
500
These are the three smallest bones in the body...Just so happens they are in the ear.
What are the hammer, anvil, and the stirrup?
500
This is the relationship between frequency and pitch.
What is the higher the frequency, the higher the pitch and the lower the frequency, the lower the pitch.
500
This procedure may help someone whose never heard before do so for the very first time.
What is a cochlear implant?
500
These creatures hear with thousands of tiny hairs growing on their antennae.