Hearing and Sound (The ear) Quiz Revison Monkey

What is the outer part of the ear called?

• Cochlea

• Eardrum

• Pinna

• Auditory canal

What role does the pinna play in hearing?

• It vibrates to produce sound.

• It funnels sound waves into the auditory canal.

• It connects to the brain.

• It protects the eardrum.

What is the function of the eardrum?

• To amplify sound

• To vibrate in response to sound waves

• To balance the body

• To produce sound

What are the three small bones in the inner ear called?

• Hammer, Anvil, and Stirrup

• Cochlea, Semicircular canals, and Eardrum

• Pinna, Auditory canal, and Ossicles

• Hair cells, Nerve cells, and Auditory nerve

What is the cochlea filled with?

• Air

• Blood

• Fluid

• Sound waves

How do hair cells in the cochlea contribute to hearing?

• They produce sound.

• They detect movement in the fluid and send signals to the brain.

• They amplify sound waves.

• They protect the inner ear.

How is the loudness of sound measured?

• In Hertz

• In Decibels

• In Amperes

• In Watts

What happens to sound every time it increases by 10 decibels?

• It becomes quieter.

• It becomes 10 times louder.

• It becomes half as loud.

• It remains the same loudness.

At what decibel level can sounds start to cause hearing damage with prolonged exposure?

• 50 decibels

• 70 decibels

• 90 decibels

• 120 decibels

What is an example of a sound that can cause instant hearing damage?

• A conversation

• A vacuum cleaner

• A loud bang or explosion

• A whisper