SOUND: How do we hear?

SOUND: How do we hear?

Multiple Choice

Is this sound loud or soft?

(An ambulance)

• soft

• loud

Multiple Choice

• Whispering

• playing a drum

Multiple Choice

• door bell

• bird

Multiple Choice

Listen to the sound and choose the correct answer:

• A girl singing

• A baby crying

Multiple Choice

High amplitude is quiet or loud?

• Quiet
• Loud

Multiple Choice

____________ is determined by sound's frequency

• Compression

• Pitch

Multiple Choice

Place the following events in sequence: A) Your eardrum begins vibrating; B) Electrical impulses travel along nerve fibers; C) The hammer, anvil, and stirrup begin moving

• B, C, A

• A, B, C

• B, A, C

• A, C, B

Multiple Choice

How is your eardrum like a real drum?

• It produces sound.

• It vibrates.

• It is frequently struck by the bones in your middle ear.

• It is hollow.

Multiple Choice

What is this?

• Nerve

• Ear canal

• Cochlea

• Ear Drum

Multiple Choice

What is this?

• Ear Drum

• Ear Canal

• Nerve

• Cochlea

Multiple Choice

Which word best describes the auditory (ear) canal?

• Filled with water

• Hollow

• Lined with sensitive nerve fibers

• Vibrating

Multiple Choice

If your inner ear lacked nerve fibers, what might happen?

• Sound would be unable to travel to your brain.

• Your eardrum would be unable to vibrate.

• Your hammer could not tap against your anvil.

• Sound waves could not enter your ear.

Multiple Choice

What is unique about the hammer, stirrup, and anvil?

• They are the smallest bones in your body

• They are the only bones in your body that move

• They are the only bones located in your head

• They are the only bones that cannot be broken

Multiple Choice

Which of the following is a TRUE statement about cats?

• They can hear softer sounds than humans.

• Their ears are much larger than humans'.

• They can hear a wider range of sounds than humans.

• They communicate with one another with sounds that humans can't hear.

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Multiple Choice

Which device measures sound waves?

• Oscilloscope

• Stethoscope

• Radio

• None of the above