Sounds and Hearing Quiz

How is sound produced?

• By the reflection of light

• By the movement of an object

• By the absorption of water

• By the vibration of molecules

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Name two parts of the ear.

• Left ear, right ear

• Front ear, back ear

• Outer ear, middle ear

• Top ear, bottom ear

What are the functions of the outer ear and the middle ear?

• Storing sound waves and converting them into light waves

• Collecting and directing sound waves, and amplifying and transmitting sound waves

Explain the difference between pitch and volume of sound.

• Pitch refers to the loudness of a sound, while volume refers to the highness or lowness of a sound.

• Pitch refers to the highness or lowness of a sound, while volume refers to the loudness or softness of a sound.

How do we hear sound?

• We hear sound through the vibrations of sound waves that are converted into electrical signals in the cochlea and sent to the brain.

• We hear sound through the reflection of sound waves in our ear canals

Tags

NGSS.MS-PS4-1

What is the role of the eardrum in the process of hearing?

• It helps to filter out unnecessary sounds

• It vibrates in response to sound waves and transmits the vibrations to the middle ear.

How can we protect our hearing?

• By using cotton swabs to clean the ears

• By using earplugs, keeping the volume low, and taking breaks from loud noises

Why is it important to avoid exposure to loud noises?

• To improve eyesight

• To prevent hearing loss and damage to the ear.

• To increase sense of taste

• To prevent sunburn

Label #1

b

Ear canal

Ear drum

Pinna

Label #7

a

Ear drum

Pinna

Cochlea