Sound and Hearing Quiz

What is the function of the pinna?

• To create electrical signals

• To gather and focus sound waves

• To amplify sound waves

• To transmit sound waves to the brain

Answer explanation

The pinna functions to gather and focus sound waves.

Which section of the ear contains the hammer, anvil, and stirrup?

• Pinna

• Inner Ear

• Middle Ear

• Outer Ear

Answer explanation

The hammer, anvil, and stirrup are located in the Middle Ear. This section of the ear is responsible for transmitting sound vibrations to the inner ear.

What is the role of the ear drum?

• To create electrical signals

• To gather and focus sound waves

• To transmit vibrations to the inner ear

• To amplify sound waves

Answer explanation

The role of the ear drum is to transmit vibrations to the inner ear.

Which bone in the middle ear taps on the inner ear at the oval window?

• Anvil

• Stirrup

• Hammer

• Pinna

Answer explanation

The bone in the middle ear that taps on the inner ear at the oval window is the Stirrup. It is one of the three tiny bones in the middle ear, also known as the ossicles. The Stirrup, or stapes, transmits sound vibrations from the Hammer to the Oval Window, which leads to the inner ear.

What happens when the hair cells in the cochlea shake?

• They amplify sound waves

• They gather and focus sound waves

• They create electrical signals

• They transmit vibrations to the brain

Answer explanation

When the hair cells in the cochlea shake, they create electrical signals. This is how sound is converted into neural impulses for the brain to process.

What is the shape of the cochlea?

• Spherical

• Cylindrical

• Snail-shaped

• Circular

What do the hair cells inside the cochlea respond to?

• Heat waves

• Electrical signals

• Light waves

• Sound waves

Answer explanation

The hair cells inside the cochlea respond specifically to sound waves, not heat waves, electrical signals, or light waves.

Tags

NGSS.MS-LS1-8

Which section of the ear contains the auditory nerve?

• Outer Ear

• Pinna

• Middle Ear

• Inner Ear

Answer explanation

The auditory nerve is located in the Inner Ear, which is the correct choice for this question.

What do the hair cells inside the cochlea do when they shake?

• Create sound waves

• Create electrical signals

• Amplify vibrations

• Transmit sound waves to the brain

Answer explanation

The hair cells inside the cochlea create electrical signals when they shake, which are then transmitted to the brain.

Tags

NGSS.MS-LS1-3

Which type of sound carries more energy and travels further into the cochlea?

• Neither carry any energy

• High pitch sounds

• Low pitch sounds

• Both carry the same energy

Answer explanation

High pitch sounds carry more energy and travel further into the cochlea compared to low pitch sounds. This is because high pitch sounds have shorter wavelengths and higher frequencies, resulting in more energy per unit of time.

Tags

NGSS.MS-PS4-1