TAMU PHYS 201 - cutnell10e_ch16_ppt (46 pages)

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cutnell10e_ch16_ppt



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cutnell10e_ch16_ppt

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Pages:
46
School:
Texas A&M University
Course:
Phys 201 - College Physics
College Physics Documents

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Chapter 16 Waves and Sound Copyright 2015 John Wiley Sons Inc All rights reserved 16 1 The Nature of Waves 1 A wave is a traveling disturbance 2 A wave carries energy from place to place Copyright 2015 John Wiley Sons Inc All rights reserved 16 1 The Nature of Waves Transverse Wave Copyright 2015 John Wiley Sons Inc All rights reserved 16 1 The Nature of Waves Longitudinal Wave Copyright 2015 John Wiley Sons Inc All rights reserved 16 1 The Nature of Waves Water waves are partially transverse and partially longitudinal Copyright 2015 John Wiley Sons Inc All rights reserved 16 2 Periodic Waves Periodic waves consist of cycles or patterns that are produced over and over again by the source In the figures every segment of the slinky vibrates in simple harmonic motion provided the end of the slinky is moved in simple harmonic motion Copyright 2015 John Wiley Sons Inc All rights reserved 16 2 Periodic Waves In the drawing one cycle is shaded in color The amplitude A is the maximum excursion of a particle of the medium from the particles undisturbed position The wavelength is the horizontal length of one cycle of the wave The period is the time required for one complete cycle The frequency is related to the period and has units of Hz or s 1 1 f T Copyright 2015 John Wiley Sons Inc All rights reserved 16 2 Periodic Waves v f T Copyright 2015 John Wiley Sons Inc All rights reserved 16 2 Periodic Waves Example 1 The Wavelengths of Radio Waves AM and FM radio waves are transverse waves consisting of electric and magnetic field disturbances traveling at a speed of 3 00x108m s A station broadcasts AM radio waves whose frequency is 1230x103Hz and an FM radio wave whose frequency is 91 9x106Hz Find the distance between adjacent crests in each wave v f T v f Copyright 2015 John Wiley Sons Inc All rights reserved 16 2 Periodic Waves AM FM v 3 00 108 m s 244 m 3 f 1230 10 Hz v 3 00 108 m s 3 26 m 6 f 91 9 10 Hz Copyright 2015 John Wiley Sons Inc All rights reserved 16 3 The Speed of



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