The Nature of Sound
Sound
How high or low a sounds seems to a person
Pitch
A set of notes that combine in patterns that are pleasing
Music
A small, tightly stretched, drum-like membrane
Eardrum
A reflected sound wave
Echo
The amount of energy a sound wave carries per second through a unit area (the louder something gets)
Intensity
The study of how sound interacts with each other and the environment
Acoustics
A fluid-filled cavity shaped like a snail shell
Cochlea
Density
The unit (or measurement) used to compare the loudness different sounds
Decibel (dB)
An object's higher natural frequency
Overtones
The section behind the eardrum, where the hammer, anvil, and stirrup are located
Middle Ear
The ability of a material to bounce back after being disturbed
Elasticity
The change in frequency of a wave as its source moves in relation to an observer
The lowest natural frequency of an object
Fundamental Tone
The first section of the ear that collects sound waves and directs them into a narrow region known as the ear canal
Outer Ear
They reflect off objects, diffract through narrow openings and around barriers, and interfere with each other
Sound Waves
Sound waves with frequencies that are above and below the normal human range of hearing
(2 answers)
Ultrasound and Infrasound
The echoes of a sound that are heard after a sound source stops producing sound waves
Reverberation
The third section of the ear where the Cochlea is located
Inner Ear