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100

A tough membrane about 0.1 mm thick that transfers sound from the outer ear to the middle ear.

What is the eardrum?

100

The change in wave frequency due to a wave source moving relative to the observer or vice-versa.

What is the doppler effect?

100

The perception of how high or low a sound seems to be due to frequency.

What is pitch?

100

The amount of energy that passes through a certain area in a specific amount of time.

What is intensity?

100

The portion of the ear inside of the eardrum were the hammer, anvil, and stirrup bones are located.

What is the middle ear?

200

A device that measures the changing voltage of an electrical signal over time, and displays the signal as a waveform.

What is an oscilloscope?

200

A spiral-shaped structure that is filled with liquid and contains many tiny hair cells.

What is the cochlea?

200

A bundle of nerve fibers that carries hearing information between the cochlea and the brain.

What is the auditory nerve?

200

The human perception of sound volume that primarily depends on sound intensity.

What is loudness?

200

A measurement, abbreviated as dB, that is a unit of sound intensity. Every increase of 10 on this scale is equal to a 10-fold increase.

What is a decibel?

300

Middle ear

What portion of the ear is inside the eardrum and contains the hammer, anvil, and stirrup bones?

300

Auditory nerve

What is a bundle of nerve fibers that carries hearing information from the cochlea to the brain?

300

Decibel

What is the measurement unit of sound intensity?

300

Pitch

What is the perception of how high or low a sound seems to be, due to frequency?

300

Doppler effect

What is the change in wave frequency due to a wave source moving relative to the observer (or vice versa)?

400

Cochlea

What is a spiral-shaped, liquid-filled structure that contains tiny hair cells?

400

Loudness

What is the human perception of sound that is mostly based on sound intensity?

400

Eardrum

What is a tough, thin membrane (about 0.1 mm thick) that transfers sound from the outer ear to the middle ear?

400

Oscilloscope

What is a device that measures the changing voltage of an electrical signal over time, displaying that signal as a waveform?

400

Intensity

What is the amount of energy that passes through a certain area in a specific amount of time?

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