Exploring Hearing and Sound Concepts

The reflection of sound waves off of a hard surface can create ______.

• A wave

• An echo 

What part of the ear is responsible for converting sound waves into electrical signals?

• Ear canal

• Cochlea

• Eardrum

• Ossicles

Which of the following best describes amplitude in a sound wave?

• The number of waves that pass a point in one second

• The height of the wave

• The distance between two consecutive crests

• The speed of the wave

How does the eardrum contribute to the hearing process?

• It amplifies sound waves

• It reflects sound waves

• It vibrates in response to sound waves

• It converts sound waves into electrical signals

What is the unit of measurement for loudness?

• Hertz

• Decibels

• Metres

• Watts

Which part of the ear contains the ossicles?

• Outer ear

• Middle ear

• Inner ear

• Ear canal

What happens to sound waves when they hit a hard surface?

• They are absorbed

• They are refracted

• They are reflected

• They are transmitted

Which of the following is true about the relationship between amplitude and loudness?

• Higher amplitude means lower loudness

• Amplitude does not affect loudness

• Higher amplitude means higher loudness

• Amplitude and loudness are inversely proportional

What is the role of the ossicles in the ear?

• To convert sound waves into electrical signals

• To transmit vibrations from the eardrum to the cochlea

• To amplify sound waves

• To protect the inner ear

Which of the following best describes sound reflection?

• Sound waves bending as they pass through different mediums

• Sound waves bouncing off a surface

• Sound waves being absorbed by a surface

• Sound waves spreading out after passing through a gap