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Infrasound and Ultrasound

Infrasound and Ultrasound. Riley Pennington. Contents. Infrasound Ultrasound Refraction ,Diffraction & Reflection Websites used. Infrasound.

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Infrasound and Ultrasound

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  1. Infrasound and Ultrasound Riley Pennington

  2. Contents • Infrasound • Ultrasound • Refraction ,Diffraction & Reflection • Websites used

  3. Infrasound • Infrasound, A certain type of frequency, is a frequency that cannot be detected by the human ear. The pitch of the wave is too low, just below 20 Hertz. Anything below 20 Hertz cannot be heard by humans. However, animals such as whales, giraffes, and even rhinos can hear infrasound. Using it to communicate everyday, animals are very familiar with this.

  4. Natural Disasters involve infrasound, too.

  5. Ultrasound • Ultrasound, in which is sort of the opposite of infrasound, is a wave frequency in which the sound is too high pitched for human hearing. According to sources, sources say that women are capable of hearing slightly higher frequencies. Animals such as bats, cats, and dogs use ultrasound to communicate and survive.

  6. Compare & Contrast • High Pitch • Used by bats, humans, and dolphins. • Cannot be heard by humans. • Low pitch • Used by whales, elephants, and giraffes. • Cannot be heard by humans. Ultrasound Infrasound

  7. Types of Waves • Diffraction: Waves go around or through something. • Reflection: Waves bounce back off of something. • Refraction: Speed of waves vary depending on the type of medium it’s being passed through.

  8. Diffraction:Waves go around or through matter.

  9. Reflection: Waves bounce back off an object.

  10. Refraction:Wave speed is different through different Mediums.

  11. Credited Website Resources • Wisegeek.com • Google.com

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