Physics Weekly

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Chapter 26: Properties of Light
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Judith S. de Nuño
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Chapter Objectives:

  • Describe the dual nature of light.
  • Explain why it is difficult to measure the speed of light.
  • Describe the relationship among light, radio waves, microwaves, and X-rays.
  • Explain how the frequency of light affects what happens when it enters a substance.
  • Describe opaque materials.
  • Describe solar and lunar eclipses.
  • Describe the evidence that suggests light waves are transverse.
  • Describe 3-D vision.

Chapter Terms:

  • electromagnetic wave
  • electromagnetic spectrum
  • transparent
  • opaque
  • shadow
  • umbra
  • penumbra
  • solar eclipse
  • lunar eclipse

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Chapter Outline Framework:

  • Electromagnetic Waves
    • Electromagnetic Wave Velocity
    • The Electromagnetic Spectrum
  • Transparent Materials
  • Opaque Materials
    • Shadows
  • Seeing Light: The Eye

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