Sences II: Hearing (Not On Final)

Question 1

What is sound?

Answer 1

Vibrations coming out as a wave of pressures

Question 2

A sounds _______ is the number of waves that pass a certain point at a given time

Answer 2

Frequency

Question 3

Shorter waves moving more quickly

Answer 3

High pitched

Question 4

Slower fluctuations result in

Answer 4

A low pitch sound

Question 5

The loudness of a sound depends on the waves

Answer 5

Amplitude

Question 6

Define amplitude

Answer 6

The difference between high and low pressures created in the air by that sound wave

Question 7

Humans can hear sound wave frequencies between

Answer 7

20Hz and 20kHz

Question 8

Ultrasound is at

Answer 8

20kHz

Question 9

Below 20Hz is

Answer 9

Infrasound

Question 10

To measure the intensity of sound we use

Answer 10

Decibels (dB)

Question 11

On the decibel scale the smallest audible sound to hear (near total silence) is

Answer 11

0 dB

Question 12

Any sound above 85 dB causes

Answer 12

Hearing loss

Question 13

Sound will reach the _______ _______ ______ in the brain

Answer 13

Primary auditory cortex

Question 14

List the 3 parts of the human ear

Answer 14

Outer ear
Middle ear
Inner ear

Question 15

The outer ear consists if a structure that serves as protection for the delicate inner part of the ear and external auditory meatus. Name that structure

Answer 15

Pinna

Question 16

The external auditory meatus is the

Answer 16

Air canal which collects sounds and directs it towards the eardrum

Question 17

C

Question 18

C

Question 19

C

Question 20

C

Question 21

C

Question 22

C

Question 23

C

Question 24

C

Question 25

C

Question 26

VESTIBULAR PORTION NOT IN VIDEO

Question 27

True or false: The skin is an organ

Answer 27

True, it is the largest organ.