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

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Presentation transcript:

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

Vibrations, Waves, and Sound Waves 20.2 The Motion of Waves 20.3 Wave Interference and Energy

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

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

Chapter 20.1 Objectives and Vocabulary 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. wave transverse longitudinal crest trough wavelength standing wave fundamental harmonics

Recognizing Waves light water radio TV cell phone

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

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

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.

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