science 1.2 ( ear )

Question 1

The three sections of the ear are

Answer 1

1. outer ear
   2.middle ear
2. inner ear

Question 2

The function of an earlobe

Answer 2

collects and directs sound waves into the ear canal

Question 3

The function of ear canal

Answer 3

directs sound waves to the eardrum

Question 4

Function of Eardrum

Answer 4

vibrates according to the frequency of the sound waves received and transfer the vibrations to the ossicles

Question 5

Function of Ossicles

Answer 5

Amplify sound vibrations and transfer them to the oval window

Question 6

Function of the Oval window

Answer 6

Collects and transfers sound vibrations from the ossicles to the cochlea

Question 7

Function of the Eustachian tube

Answer 7

Balances the air pressure on both sides of the eardrum

Question 8

Function of Cochlea

Answer 8

Detects and converts sound vibrations into nerve impulses

Question 9

Function of Auditory nerve

Answer 9

Sends nerve impulses from the cochlea to the brain to be interpreted

Question 10

Function of semicircular canals

Answer 10

Helps to balance the body

Question 11

We can only hear frequencies between

Answer 11

20 Hz to 20,000 Hz