Crash Course Hearing & Balance

What primarily causes sound?

• Vibrations in the air

• Light waves hitting objects

• Movement of the earth

• Changes in temperature

What is the role of the eardrum in hearing?

• It captures sound waves from the environment

• It amplifies sound waves

• It vibrates in response to sound waves

• It converts sound waves into electrical signals

Which part of the ear is responsible for maintaining equilibrium?

• The auditory canal

• The eardrum

• The vestibular apparatus

• The cochlea

What is the function of the auditory ossicles?

• To capture sound waves

• To maintain equilibrium

• To amplify sound waves

• To convert sound waves into electrical signals

How does the inner ear move sound?

• Through a special fluid

• Through air

• Through electrical signals

• Through vibrations in the bone

What does the frequency of a sound wave determine?

• Its volume

• Its pitch

• Its speed

• Its amplitude

What triggers the hair cells in the organ of Corti?

• Movement of the auditory ossicles

• Pressure changes in the outer ear

• Vibrations of the basilar membrane

• Electrical impulses

Tags

NGSS.MS-PS4-1

What causes motion sickness according to the text?

• Exposure to low temperatures

• High frequency vibrations

• Loud sounds

• A disconnect between sensory inputs

Tags

NGSS.MS-LS1-8

What is the main function of the pinna?

• To maintain balance

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

• To convert vibrations into electrical signals

• To amplify sound waves

How does the brain interpret the pitch of a sound?

• Based on the amplitude of the sound wave

• Based on the speed of the sound wave

• Based on the location of the hair cells being triggered

• Based on the temperature of the sound wave

Tags

NGSS.MS-LS1-8