unit 7 - sound

Question 1

Sound begins with _________

Answer 1

vibration

Question 2

When the diaphragm of the speaker moves out, pushing air molecules together

Answer 2

Condensation

Question 3

When the diaphragm moves in, pulling the air molecules apart

Answer 3

Rarefaction

Question 4

The cycle of ___________ creates alternating high- and low-pressure

Answer 4

Condensation and Rarefaction

Question 5

_________ is the distance between identical points in the same cycle

Answer 5

Wavelength

Question 6

_______ refers to the number of waves in a unit time, we perceive it as pitch

Answer 6

Frequency

Question 7

__________ is the perception of amplitude

Answer 7

Loudness

Question 8

Number of cycles within a given time period

Answer 8

Frequency

Question 9

Measured in Hertz (Hz)

Answer 9

Frequency

Question 10

Perception of _____ is related to frequency

Answer 10

pitch

Question 11

The amount of pitch increase that happens when ______ is increased

Answer 11

frequency

Question 12

_______ is the quality that distinguishes between two different sounding tones

Answer 12

Timbre

Question 13

A tone with pressure changes that can be described by a single sine wave

Answer 13

Pure Tone

Question 14

A _________ breaks natural sounds down into its component sine waves

Answer 14

Fourier Analysis

Question 15

The tympanic membrane is also known as the ______

Answer 15

ear drum

Question 16

The Outer Ear is composed of

Answer 16

Pinna
Auditory canal
Tympanic membrane

Question 17

Middle Ear is composed of

Answer 17

Ossicle

Question 18

The inner ear is composed of

Answer 18

Cochlea
Semicircular canals
Auditory nerve

Question 19

_______ transmit vibrations from air-filled middle ear to fluid-filled inner ear

Answer 19

Ossicles

Question 20

The three bones in the ossicles

Answer 20

Malleus (hammer)
Incus (anvil)
Stapes (stirrup)

Question 21

The Oval window is vibrated by the _____

Answer 21

stapes

Question 22

The Organ of Corti includes ___________

Answer 22

rows of outer and inner hair cells

Question 23

Inner hair cells are embedded in ______________

Answer 23

the basilar membrane

Question 24

The synchronization of neural activity is known as ________

Answer 24

phase lock in

Question 25

The __________ explains that since neurons cannot fire more than 1000 times in a minute, some neurons alternate firing

Answer 25

volley principle

Question 26

Different neurons of the organ of Corti respond to different frequencies of sound, following ___________

Answer 26

a tonotopic organization

Question 27

Frequency is the _____ code

Answer 27

place

Question 28

Timber is the _______ code

Answer 28

population

Question 29

Secondary Auditory Cortex is less responsive to ______ and more responsive to ________

Answer 29

pure tones and complex sounds

Question 30

Damage to Auditory Cortex can cause

Answer 30

deafness

Question 31

Conductive Deafness is caused by _______

Answer 31

damage to ossicles