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NEW CHAPTER

the BIG idea. CHAPTER OUTLINE. CHAPTER RESOURCES. CHAPTER. NEW CHAPTER. Sound. Sound waves transfer energy through vibrations. 2.1. Sound is a wave. 2.2. Frequency determines pitch. 2.3. Intensity determines loudness. 2.4. Sound has many uses. 2.1. Sound is a wave.

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NEW CHAPTER

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  1. theBIGidea CHAPTER OUTLINE CHAPTER RESOURCES CHAPTER NEW CHAPTER Sound Sound waves transfer energy through vibrations. 2.1 Sound is a wave. 2.2 Frequency determines pitch. 2.3 Intensity determines loudness. 2.4 Sound has many uses.

  2. 2.1 Sound is a wave. Sound is a longitudinal wave that travels through a material medium, such as air. sound vibration vacuum CHAPTER RESOURCES wave SECTION OUTLINE

  3. 2.2 Frequency determines pitch. A sound wave with a lower frequency and longer wavelength is perceived to have a lower pitch. pitch hertz ultrasound resonance Doppler effect A sound wave with a higher frequency and shorter wavelength is perceived to have a higher pitch. CHAPTER RESOURCES SECTION OUTLINE

  4. VISUALIZATION CLASSZONE.COM Explore the Doppler effect. 2.2 Frequency determines pitch. pitch hertz ultrasound resonance Doppler effect CHAPTER RESOURCES SECTION OUTLINE

  5. 2.3 Intensity determines loudness. A sound wave with a lower amplitude and energy is perceived as a softer sound. intensity decibel amplification acoustics CHAPTER RESOURCES SECTION OUTLINE

  6. 2.3 Intensity determines loudness. A sound wave with a higher amplitude and energy is perceived as a louder sound. intensity decibel amplification acoustics CHAPTER RESOURCES SECTION OUTLINE

  7. VISUALIZATION Discover how particles move as sound waves move through the air. 2.3 Intensity determines loudness. A sound wave with a higher amplitude and energy is perceived as a louder sound. intensity decibel amplification acoustics CHAPTER RESOURCES SECTION OUTLINE

  8. 2.4 Sound has many uses. echolocation Human uses of sound: sonar sonar ultrasound music telephone recording CHAPTER RESOURCES SECTION OUTLINE

  9. 2.4 Sound has many uses. echolocation sonar Bats use sound to locate objects. CHAPTER RESOURCES SECTION OUTLINE

  10. 2.1 Sound is a wave. I. Sound is a wave. sound • A. Sound is a type of mechanical wave. vibration • 1. How Sound Waves Are Produced vacuum • 2. How Sound Waves Are Detected • B. Sound waves vibrate particles. • C. The speed of sound depends on its medium. • 1. The Effect of the Material • 2. The Effect of Temperature CHAPTER RESOURCES KEY CONCEPT SUMMARY

  11. 2.2 Frequency determines pitch. II. Frequency determines pitch. pitch A. Pitch depends on the frequency of a sound wave. hertz ultrasound • 1. High and Low Frequencies • 2. Natural Frequencies resonance • 3. Sound Quality Doppler effect • B. The motion of the source of a sound affects its pitch. • 1. The Doppler Effect • 2. Frequency and Pitch CHAPTER RESOURCES KEY CONCEPT SUMMARY

  12. 2.3 Intensity determines loudness. III. Intensity determines loudness. intensity • A. Intensity depends on the amplitude of a sound wave. decibel • B. The intensity of sound can be controlled. amplification • 1. Amplification acoustics • 2. Acoustics • C. Intense sound can damage hearing. CHAPTER RESOURCES KEY CONCEPT SUMMARY

  13. 2.4 Sound has many uses. IV. Sound has many uses. echolocation • A. Ultrasound waves are used to detect objects. sonar • 1. Echolocation • 2. Sonar • 3. Medical Uses of Ultrasound • B. Sound waves can produce music. • C. Sound can be recorded and reproduced. • 1. The Telephone CHAPTER RESOURCES • 2. Recorded Sound KEY CONCEPT SUMMARY

  14. CLASSZONE.COM CHAPTER HOME Chapter Resources Image Gallery Click here to view chapter images and animations Click on the items below to access resources on Resource Centers Get more information on select science topics Audio Readings Hear chapter audio readings Content Review Review key concepts and vocabulary Standardized Test Practice Practice state standardized tests Math Tutorial Review math concepts BACK TO CHAPTER

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