Waves
A rhythmic movement that carries energy through a medium such as air or water.
What is a wave?
An equivalent term for frequency.
What is pitch?
The number of tiny bones in the middle ear.
What is 3?
A reflected sound.
What is an echo?
This redirects sound into the auditory canal.
What is the external ear?
Another name for a sound wave.
What is a compression wave?
The human perception of the sound's intensity.
What is loudness?
The name of the tightly coiled structure in the inner ear.
What is the cochlea?
Used by whales and dolphins to navigate.
What is echolocation?
Loud and sustained noises can cause this.
What is hearing damage?
An area of high density and high pressure.
What is a compression?
The scale used to measure the intensity of a sound wave.
What is the decibel scale?
The name of the tube where the malleus, incus, and stapes are found.
What is the eustachian tube?
Powers of this number are used as the base for the decibel scale.
What is 10?
The names of the 3 tiny bones in the middle ear.
What are the malleus, incus and stapes (hammer, anvil, and stirrup)?
An area of low density and low pressure.
What is a rarefaction?
The amount of energy of a sound wave.
What is intensity?
The first part of the middle ear that sound waves reach.
What is the tympanic membrane or eardrum?
Frequency is measured by the number of cycles of compression passing a given point in this amount of time.
What is 1 second?
The frequency range of human hearing.
What is approximately 20 - 20,000 Hertz?
The horizontal distance between the highest points (crests) of 2 successive sound waves.
What is a wavelength?
A 50 dB sound has this much more energy than a 30 dB sound.
What is 100 times as much?
The part of the ear where tiny hairs and sensory cells are found.
What is the inner ear or cochlea?
The cause of all sound waves.
What is vibration?
These do not have the same hearing range as humans.
What are other mammals?