Sound Waves through a cup phone

What are your Observations and results from the experiment?

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Could you hear your partner better using the cups and tight string than if you were

speaking to each other in the same volume over the air?

• Yes

  (string was louder)

• No

  (Face to face was louder)

• About the same

If you have a third person around, ask them to hold on to the center of the

string with their hand. Will the sound still carry through? Why or why not?

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What is the flexoelectric effect? How does it apply to hearing?

• The flexoelectric effect is the absorption of light in a material due to a strain gradient. In hearing, it can apply to the eardrum by amplifying sound waves.
• The flexoelectric effect is the reflection of sound waves in a material due to a strain gradient. In hearing, it can apply to the inner ear by blocking external noises.
• The flexoelectric effect is the transmission of heat in a material due to a strain gradient. In hearing, it can apply to the brain by interpreting sound vibrations.
• The flexoelectric effect is the generation of electric polarization in a material due to a strain gradient. In hearing, it can apply to the cochlea by converting sound waves into neural signals.

What effect does the length of the hairs in organisms’ ears have?

• The length of the hairs in organisms' ears has no impact on their hearing abilities.
• Longer hairs in organisms' ears improve their hearing.

• Shorter hairs in organisms' ears reduce their ability to see in the dark.
• The length of the hairs in organisms' ears can affect their ability to detect different frequencies of sound.

Is sound waves

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