CHAPTER NEW CHAPTER Sound the BIG idea Sound

CHAPTER NEW CHAPTER Sound the BIG idea Sound waves transfer energy through vibrations. 16. 1 Sound is a wave. 16. 2 Frequency determines pitch. 16. 3 Intensity determines loudness. 16. 4 Sound has many uses. CHAPTER OUTLINE CHAPTER RESOURCES

16. 1 CHAPTER HOME KEY CONCEPT Sound is a wave. Sound is a longitudinal wave that travels through a material medium, such as air. VOCABULARY sound vibration vacuum CHAPTER RESOURCES wave SECTION OUTLINE

16. 2 KEY CONCEPT CHAPTER HOME Frequency determines pitch. A sound wave with a lower frequency and longer wavelength is perceived to have a lower pitch. VOCABULARY 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

16. 2 KEY CONCEPT CHAPTER HOME Frequency determines pitch. VOCABULARY pitch VISUALIZATION CLASSZONE. COM Explore the Doppler effect. hertz ultrasound resonance Doppler effect CHAPTER RESOURCES SECTION OUTLINE

16. 3 KEY CONCEPT CHAPTER HOME Intensity determines loudness. A sound wave with a lower amplitude and energy is perceived as a softer sound. VOCABULARY intensity decibel amplification acoustics CHAPTER RESOURCES SECTION OUTLINE

16. 3 KEY CONCEPT CHAPTER HOME Intensity determines loudness. A sound wave with a higher amplitude and energy is perceived as a louder sound. VOCABULARY intensity decibel amplification acoustics CHAPTER RESOURCES SECTION OUTLINE

16. 3 KEY CONCEPT CHAPTER HOME Intensity determines loudness. A sound wave with a higher amplitude and energy is perceived as a louder sound. VOCABULARY intensity decibel amplification VISUALIZATION Discover how particles move as sound waves move through the air. acoustics CHAPTER RESOURCES SECTION OUTLINE

16. 4 KEY CONCEPT CHAPTER HOME Sound has many uses. VOCABULARY echolocation Human uses of sound: sonar ultrasound music telephone recording CHAPTER RESOURCES SECTION OUTLINE

16. 4 KEY CONCEPT CHAPTER HOME Sound has many uses. VOCABULARY echolocation sonar Bats use sound to locate objects. CHAPTER RESOURCES SECTION OUTLINE

16. 1 KEY CONCEPT CHAPTER HOME Sound is a wave. I. Sound is a wave. A. Sound is a type of mechanical wave. 1. How Sound Waves Are Produced VOCABULARY sound vibration 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

16. 2 KEY CONCEPT CHAPTER HOME Frequency determines pitch. II. Frequency determines pitch. A. Pitch depends on the frequency of a sound wave. VOCABULARY pitch hertz 1. High and Low Frequencies ultrasound 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

16. 3 KEY CONCEPT CHAPTER HOME Intensity determines loudness. III. Intensity determines loudness. VOCABULARY 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

16. 4 KEY CONCEPT CHAPTER HOME Sound has many uses. IV. Sound has many uses. A. Ultrasound waves are used to detect objects. VOCABULARY echolocation 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 2. Recorded Sound CHAPTER RESOURCES KEY CONCEPT SUMMARY

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