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Flashcards: Sound and Parts of the Ear Test.

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Pinna	The Pinna collects the sound waves, and directs them to the ear canal.
Ear Canal	The place, where sound waves, travel through.
Eardrum	Sound Waves, vibrate the Eardrum, a lightly stretched membrane, which is the Entrance, to the Middle Ear.
Hammer	In the hammer, the vibration of the eardrum, makes the hammer vibrate, and then the anvil and stirrup, vibrate.
Stirrup	The Stirrup, vibrates the oval window.

Oval Window	The Entrance to the Inner Ear. The Vibrations of the Oval Window, create waves, in the liquid, inside the Cochlea.
Cochlea	The Place, where waves, are created in the liquid.
Hair Cells	The Movement of the liquid, causes the Cochlea's tiny Hair Cells, inside, to bend. The bending of the Hair Cells, stimulates nerves, which send electrical signals, to the brain, to interpret the sound.
Outer Ear	The Outer Ear, is like a funnel, for sound waves, to travel through.
Middle Ear	In the Middle Ear, three bones, which are the Hammer, Anvil, and Stirrup, act as levers, to increase the size, of the vibrations.

Inner Ear	The Inner Ear, is where vibrations, created by sound, are changed into electrical signals, for the brain, to interpret.
Sound Waves	When sound is transmitted, from a source, its vibrations, travel in all directions, through matter, creating a sound.
Echo	A Reflected Sound Wave.
Supersonic	Speed Faster than the Speed of Sound.
Hertz	The Unit used to express Frequency; One Hertz, is one cycle per second.

Echolocation	The Process of using Reflected Sound Waves, to find objects.
Decibels	The Most Common Unit used to Express, Loudness.
Music	A Pattern of, Pleasant To Hear Sounds, with Quality, Rhythm, Tune, Melody, and Harmony.
Rhythm	The Speed of Beats in a Cycle.
Tune	High or Low Pitches.

Harmony	A Combination, of Pleasant Sounds, blending together.
Melody	Pleasant Arrangements, of Musical Notes.
Noise	Any Undesired Sound, Especially, Especially Non-Musical Sound, that includes, a random mix, of pitches.
Timbre	Sound Quality.
Sound Quality	Pitches Blending Together, to make a Pleasant Sound.

Ear	The Ear, Made Up of Many Parts, Change Sound Waves, to Electrical Signals, which are sent to the brain, to interpret.
Vibration	A Back and Forth Motion, of an Object.
Wind	A Wind Instrument, Produces, Sound When a Vibration, is Created at One End of its Air Column. Woodwind Instruments: Saxaphones, Oboes, and Recorders. Brass Instruments: French Horns, Trombones, and Tubas.
String	A String Instrument, Produces, Sound When Their Strings Vibrate, After Being, Plucked or Bowed. String Instruments: Violins, Guitars, and Banjos.
Percussion	A Percussion Instrument, Produces, Sound When Struck. Different Sized, Instruments, are used to get, Different Pitches. Usually, the Larger the Instrument, the Lower the Pitch. Percussion Instruments: Drums, Bells, and Cymbals.

Medium	A Substance, Through Which a Wave, Can Travel.
Fundamental Tone	Lowest Pitch Sound. (Lowest Resonant Frequency.)
Overtone	Highest Pitch Sound. (Highest Resonant Frequency.)
Amplitude	The Height, Between, the Sound Waves, Vertically.
Frequency	The Length, Between, the Sound Waves, Horizontally.

Pitch	The Pitch is, How High or Low, a Sound is.
Intensity	Energy in a Sound Wave.
Steel	A Substance, Similar, to Metal.
Cork	A Substance, Which is Usually, used to Sound-Proof Walls.
Vacuum	An Area, Where Sound, can't be heard.