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Chapter 12 Notes

Chapter 12 Notes. Journal – Read/Summarize pages 390 to 391. What Factors affect the speed of Sound ? What affects how loud a sound is?. Properties of sound. Sound waves in air spread out in all directions away from the source.

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Chapter 12 Notes

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  1. Chapter 12 Notes

  2. Journal – Read/Summarize pages 390 to 391 • What Factors affect the speed of Sound? • What affects how loud a sound is?

  3. Properties of sound • Sound waves in air spread out in all directions away from the source. • Sound travels through the air at room temperature about 346 m/s (760 mi/h)

  4. Factors that affect Speed of Sound • Temperature • Type of Medium • See chart page 391

  5. What determines how loud or what pitch a sound wave makes? • Loudness is determined by the energy in the wave which we see in the amplitude of a wave. The higher the amplitude the more energy and the louder a sound is. • Loudness is also determined by distance. http://library.thinkquest.org/19537/Physics3.html http://www.fi.edu/fellows/fellow2/apr99/soundvib.html

  6. What determines the Pitch or tone of a sound? • Frequency Natural frequency - when an object vibrates naturally on its own.

  7. How does our ear allow us to hear?

  8. Why do We see Colors?

  9. Vocab Review

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