Quiz Review: Sound and Hearing (20-21)

A wave that needs a medium to travel is called a ______________ wave.

• electromagnetic

• longitudinal

• mechanical

• transverse

Mrs. Hanf stretches a rubber band across a box and lets it go. What is produced?

• Electrical energy

• Light waves

• Magnetic energy

• Sound waves

What does your ear do?

• convert sound waves into nerve impulses

• receive and transmit sound waves

• respond to sound

• all of these

The ear contains three tiny bones called the _____, _____, and _____.

• cochlea, vestibule, auditory nerve

• pinna, ear canal, eardrum

• hammer, anvil, stirrup

• all of these

Which structure of the outer ear is shaped to gather and focus sound waves?

• ear canal

• eardrum

• pinna

• tympanic membrane

What does the stirrup do?

• holds the foot of a rider.

• keeps pants tucked into boots

• "Taps" on the inner ear.

• used in medical exams

Which structure is lined with receptors (hair cells) that respond to sound?

• auditory nerve

• cochlea

• semicircular canals/ducts

• vestible

What can happen if any step of the hearing process is interrupted? (Choose the best answer.)

• hearing loss

• hospitalization

• loss of balance

• pain in the ear

What happens to the speed of sound as a medium cools?

• The sound travels faster.

• The sound travels slower.

• There is no change to the speed of the sound.

How high or low a sound is perceived to be is _____.

• decibel

• Doppler effect

• loudness

• pitch