Physics A First Course Vibrations Waves and Sound

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

Vibrations, Waves, and Sound Waves n 20. 1 Waves n 20. 2 The Motion of Waves n 20. 3 Wave Interference and Energy

20 A Investigation: Waves Key Question: What are the properties of waves? *Students read text section 20. 1 AFTER Investigation 20 A

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

Chapter 20. 1 Objectives and Vocabulary n Describe transverse and longitudinal waves. n Learn the properties of waves. n Calculate the speed of a wave n transverse n n longitudinal crest trough wavelength standing wave fundamental n harmonics n n n Identify the fundamental and harmonics of a standing wave. n

Recognizing Waves n light n water n radio n TV n cell phone

Chapter 20. 2 Objectives and Vocabulary n Learn how waves propagate. n Demonstrate the four wave interractions. propagate n plane wave n n wave fronts circular wave boundaries reflection refraction diffraction n absorption n n

20 B Investigation: Resonance and Standing Waves Key Question: How do we make and control waves? *Students read text section 20. 3 AFTER Investigation 20 B

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

Chapter 20. 3 Objectives and Vocabulary n n n Describe the superposition principle, constructive and destructive wave interference. Review natural frequency and resonance. Learn about the relationship between wave energy and its properties. n n n interference superposition principle wave pulse constructive interference destructive interference