Hearing Mechanism

Q.

List different ways of taking care of your ears?

Q.

Which part of our body vibrates to produce sound when we speak?

1. Windpipe

2. Vocal chords

3. Tongue

4. Larynx

Q.

The membrane-like structure in the ear which receives vibrations, thus enabling us to hear sound is called ___.

1. Larynx

2. Voice box

3. None of these

4. Eardrum

Q.

We must never put a sharp, pointed or hard object into our ear. It can damage our eardrum.

1. True

2. False

Q.

What part of human body is responsible for the production of voice?

1. Windpipe

2. None of these

3. Tongue

4. Larynx

Q. What is the function of cochlea in a human ear?

1. It protects the ear from damage.
2. It converts ear drum vibrations into electrical impulses.
3. It amplifies vibrations reaching the middle ear.
4. It directs sound waves into the ear canal.

Q. Sound waves are amplified by the tiny bones present in the

1. outer ear
2. middle ear
3. inner ear
4. brain

Q.

Statement 1: Sound vibrations make the ear drum vibrate which further sends vibrations to the inner ear.
Statement 2: Ear drum is a thin stretched membrane.

1. Both the statements are false.

2. Both the statements are true.

3. Statement 1 is true but statement 2 is false.

4. Statement 1 is false but statement 2 is true.

Q. __________ is the thin membrane stretched tightly in the ear which vibrates in response to sound.

1. ear drum
2. ear canal
3. pinna
4. vocals

Q. The function of the bones in the middle ear is to

1. protect the ear from germs.
2. enhance the vibrations entering the ear.
3. stop the sound from entering the ear.
4. produce essential hormones for the proper functioning of the ear.

Q. The time period of a sound wave is $0.020s$. What is the frequency of vibration?

1. $100Hz$
2. $50Hz$
3. $40Hz$
4. $20Hz$