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Reading Quiz Chapter 25 Dr. Harold Williams
© 2010 Pearson Education, Inc. Reading Quiz 1.Which of the following will cause an induced current in a coil of wire? A. A magnet resting near the coil. B. The constant field of the earth passing through the coil. C. A magnet being moved into or out of the coil. D. A wire carrying a constant current near the coil. Slide 25-5
© 2010 Pearson Education, Inc. Answer 1.Which of the following will cause an induced current in a coil of wire? A. A magnet resting near the coil. B. The constant field of the earth passing through the coil. C. A magnet being moved into or out of the coil. D. A wire carrying a constant current near the coil. Slide 25-6
© 2010 Pearson Education, Inc. Reading Quiz 2.The speed of electromagnetic waves in a vacuum A. depends upon the wavelength. B. depends on the photon energy. C. is the same as the speed of sound. D. is the same for all waves regardless of wavelength. Slide 25-7
© 2010 Pearson Education, Inc. Answer 2.The speed of electromagnetic waves in a vacuum A. depends upon the wavelength. B. depends on the photon energy. C. is the same as the speed of sound. D. is the same for all waves regardless of wavelength. Slide 25-8
© 2010 Pearson Education, Inc. 3.Comparing infrared and ultraviolet, we can say that A. infrared has longer wavelength and higher photon energy. B. infrared has longer wavelength and lower photon energy. C. ultraviolet has longer wavelength and higher photon energy. D.ultraviolet has longer wavelength and lower photon energy. Reading Quiz Slide 25-9
© 2010 Pearson Education, Inc. Answer 3.Comparing infrared and ultraviolet, we can say that A. infrared has longer wavelength and higher photon energy. B. infrared has longer wavelength and lower photon energy. C. ultraviolet has longer wavelength and higher photon energy. D.ultraviolet has longer wavelength and lower photon energy. Slide 25-10
© 2010 Pearson Education, Inc. Slide Electromagnetic Induction and Electromagnetic Waves.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Magnets and the magnetic field Electric currents create magnetic fields.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electromagnetic induction Lenz’s law Faraday’s law The nature of electromagnetic.
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display 1 Exam #1: average=25.5 (73%) Pick up HW #5: due Thursday,
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Electricity and Magnetism. Moving Charges and Magnetic Fields Moving charges produce magnetic fields Magnetic field lines form circles around a wire The.
Wavelength ◦ The shortest distance between equivalent points on a continuous wave; either crest to crest or trough to trough ◦ Measured in m.
Kinds of Radiant Energy Infrared RaysRadio Waves Ultraviolet raysX-rays.
© 2010 Pearson Education, Inc. PowerPoint ® Lectures for College Physics: A Strategic Approach, Second Edition Chapter 25 Electromagnetic Induction and.
Waves S8P4. Students will explore the wave nature of sound and electromagnetic radiation. a. Identify the characteristics of electromagnetic and mechanical.
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