Sound Waves through a cup phone

What are your Observations and results from the experiment?

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?

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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