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Chapter 20

Chapter 20. Physics A First Course. Vibrations, Waves, and Sound. Vibrations, Waves, and Sound Waves. 20.1 Waves 20.2 The Motion of Waves 20.3 Wave Interference and Energy. Key Question: What are the properties of waves?. 20A Investigation: Waves.

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Chapter 20

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  1. Chapter 20 Physics A First Course Vibrations, Waves, and Sound

  2. Vibrations, Waves, and SoundWaves • 20.1 Waves • 20.2 The Motion of Waves • 20.3 Wave Interference and Energy

  3. Key Question: What are the properties of waves? 20A Investigation: Waves *Students read text section 20.1 AFTER Investigation 20A

  4. 20A Investigation Topics • Make a wave pulse. • Observe different types of waves. • Create wave patterns. • Measure wave frequency and period. • Sketch waves.

  5. Describe transverse and longitudinal waves. Learn the properties of waves. Calculate the speed of a wave. Identify the fundamental and harmonics of a standing wave. Chapter 20.1 Objectives and Vocabulary • wave • transverse • longitudinal • crest • trough • wavelength • standing wave • fundamental • harmonics

  6. Recognizing Waves • light • water • radio • TV • cell phone

  7. propagate plane wave wave fronts circular wave boundaries reflection refraction diffraction absorption Learn how waves propagate. Demonstrate the four wave interractions. Chapter 20.2 Objectives and Vocabulary

  8. Key Question: How do we make and control waves? 20B Investigation: Resonance and Standing Waves *Students read text section 20.3 AFTER Investigation 20B

  9. 20B Investigation Topics • Experiment with standing waves on a string. • Measure frequency and wavelength. • Identify the relationship between frequency and wavelength. • Determine how frequency and energy are related.

  10. interference superposition principle wave pulse constructive interference destructive interference Describe the superposition principle, constructive and destructive wave interference. Review natural frequency and resonance. Learn about the relationship between wave energy and its properties. Chapter 20.3 Objectives and Vocabulary

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