9th Grade Science Chapter 12d

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Presentation transcript:

9th Grade Science Chapter 12d Using Sound 9th Grade Science Chapter 12d

Some uses of sound: Acoustics: Study of sound May be used to design rooms and buildings Design used to limit reverberation Example

Some uses of sound: Echolocation: Using echo time and speed of wave to determine distance Some animals can do this: Bats How distance is determined:

Some uses of sound: SONAR Stands for: Sound Navigation and Ranging Similar to echolocation, sound sent from ship to bottom of water How distance is found: Math Skills p 378 You send out a sonar pulse that is returned from a sunken pirate ship in 3 s. The speed of sound in water is 1439 m/s. How deep is the sunken ship?

Some uses of sound: Ultrasound High frequency sounds can be used to clean material Can be used to image soft organs/body parts Can be used to treat some medical problems