Sound Waves and Hearing Assessment

Front

What is an echo?

Back

An echo is a reflected sound wave.

Front

Through which part of the ear do sound waves enter?

Back

Sound waves enter through the ear canal.

Front

What happens when two or more sound waves interact?

Back

They create interference.

Front

What is the Doppler Effect?

Back

The changing pitch of a sound as the source moves relative to an observer.

Front

What are sound waves with frequencies below the normal human range of hearing called?

Back

Infrasound.

Front

What is the speed of sound?

Back

The speed at which sound waves travel through a medium.

Front

What is resonance in sound?

Back

Resonance is the amplification of sound when an object vibrates at its natural frequency.

Front

What is ultrasound?

Back

Sound waves with frequencies above the normal human range of hearing.

Front

What is the role of the ear drum?

Back

The ear drum vibrates in response to sound waves, transmitting sound to the inner ear.

Front

What is intensity in terms of sound?

Back

Intensity is the power carried by sound waves per unit area.