Understanding Sound and Equilibrium

What primarily creates sound?

• Electric currents

• Light waves

• Vibrations in the air

• Magnetic fields

What is the role of the eardrum in hearing?

• Amplifies sound waves

• Catches sound waves

• Vibrates to push a series of tiny bones

• Converts sound waves into electrical signals

Which part of the ear is primarily responsible for maintaining equilibrium?

• The pinna

• The vestibular apparatus

• The auditory canal

• The cochlea

How does the inner ear move sound?

• Through a special fluid

• Through air

• Through electrical impulses

• Through bone conduction

What is the function of the auditory ossicles?

• To amplify sound waves

• To maintain equilibrium

• To convert vibrations into electrical signals

• To catch sound waves

What does the basilar membrane do?

• Vibrates at different frequencies depending on the pitch of the sound

• Catches sound waves

• Amplifies sound waves

• Generates electrical impulses

How does the brain detect the pitch of a sound?

• By the color of the sound waves

• By the location of the hair cells being triggered

• By the duration of the sound

• By the volume of the sound

What causes motion sickness according to the text?

• A disconnect between vestibular senses and visual senses

• Loud sounds

• High frequency vibrations

• Low amplitude sound waves

What is the main function of the pinna?

• To catch sound waves and pass them deeper into the ear

• To maintain equilibrium

• To convert sound waves into electrical signals

• To amplify sound waves

How are louder sounds interpreted by the brain?

• By changing the pitch of the sound

• By generating smaller graded potentials

• By moving the hair cells less

• By generating more frequent action potentials