Sound waves+ Functions of the ear

Front

What is the cochlea?

Back

The cochlea is a spiral-shaped structure in the inner ear that contains tiny hair cells that convert sound vibrations into neural signals.

Front

What is the correct sequence of sound transmission through the ear?

Back

The correct sequence is: Pinna → Eardrum → Ossicles → Cochlea.

Front

How is frequency measured?

Back

Frequency is measured in Hertz (Hz), which indicates the number of cycles per second of a sound wave.

Front

What does frequency determine in sound?

Back

Frequency determines the pitch of the sound; higher frequencies correspond to higher pitches.

Front

What causes sound waves to form in the air?

Back

Sound waves are formed by object vibrations that create pressure changes in the air.

Front

What is the function of the eardrum?

Back

The eardrum vibrates in response to sound waves and transmits these vibrations to the ossicles.

Front

What are ossicles?

Back

Ossicles are three tiny bones in the middle ear (malleus, incus, stapes) that amplify sound vibrations from the eardrum to the cochlea.

Front

What is the role of hair cells in the cochlea?

Back

Hair cells in the cochlea convert mechanical vibrations from sound waves into electrical signals that are sent to the brain.

Front

What is sound wave speed in air?

Back

The speed of sound in air is approximately 343 meters per second at room temperature.

Front

What is amplitude in sound waves?

Back

Amplitude refers to the height of the sound wave and is related to the loudness or volume of the sound.