IB Hearing

What name is given to the part of the ear shown in the diagram?

• Auricle

• Cartilage

• Ear canal

• Ossicles

Which structure is found in the middle ear?

• Auditory canal

• Cochlea

• Eustachian tube

• Pinna

In which labelled structure is ear wax produced?

• Structure A

• Structure B

• Structure C

• Structure D

Which of the following is not a reason why ear wax is important?

• It traps dust and dirt particles

• It lubricates the ear drum

• It prevents loud sounds from damaging the ear drum

• It slows the growth of microbes like bacteria.

Which statement is true about the labelled structure?

• It drains excess fluid from the cochlea.

• It is connected to the back of the nasal cavity.

• It prevents sound vibrations from leaving the ear.

• It brings air into the ear.

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

• Cochlea

• Eardrum

• Auditory Canal

• Pinna

Which of the following frequencies is within the typical human hearing range?

• 10 Hz

• 100 Hz

• 1000 Hz

• 10000 Hz

What is the unit of measurement for sound intensity?

• Decibel

• Hertz

• Watt

• Pascal

Which experiment can demonstrate the Doppler effect with sound?

• A tuning fork in water

• A moving car with a siren

• A vibrating string

• A whispering gallery

What is the speed of sound in air at room temperature?

• 343 m/s

• 300 m/s

• 1500 m/s

• 1200 m/s

Tags

NGSS.MS-PS4-1