HW#5 - Chapter 5_ Light, The Cosmic Messenger - HW#5 Chapter 5 Light The Cosmic Messenger HW#5Chapter5:Light,TheCosmicMessenger

HW#5 - Chapter 5_ Light, The Cosmic Messenger - HW#5...

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12/21/2016 HW#5 - Chapter 5: Light, The Cosmic Messenger 1/42 HW#5 ­ Chapter 5: Light, The Cosmic Messenger Due: 11:59pm on Tuesday, November 22, 2016 You will receive no credit for items you complete after the assignment is due. Grading Policy Ranking Task: The Electromagnetic Spectrum Learning Goal: To understand how the major forms of light differ in wavelength, frequency, and energy. Introduction. The complete range of all possible forms of light is called the electromagnetic spectrum , so­named because light carries both electric and magnetic fields. Recall that light behaves as both a particle and a wave; we say that light comes in particle­like "pieces" called photons , but that each photon is characterized by a wavelength and a frequency. Part A We divide the electromagnetic spectrum into six major categories of light, listed below. Rank these forms of light from left to right in order of increasing wavelength . To rank items as equivalent, overlap them. Hint 1. The wavelength of radio waves Any light wave with a wavelength longer than 1 is considered a radio wave. This fact should help you place radio waves correctly in Part A. ANSWER:
12/21/2016 HW#5 - Chapter 5: Light, The Cosmic Messenger Correct Notice that these wavelengths span an enormous range. The wavelengths of gamma rays can be smaller than the size of an atomic nucleus, while the wavelengths of radio waves can be many meters (or even kilometers) long. Visible light spans only a very narrow range of wavelengths, from about 400 at the blue (violet) end to about 700 at the red end. Part B Rank the forms of light from left to right in order of increasing frequency . To rank items as equivalent, overlap them. Hint 1.What is the mathematical relationship between frequency and wavelength? Help Reset gamma rays X rays ultraviolet visible light infrared radio waves Longest wavelength Shortest wavelength
12/21/2016 HW#5 - Chapter 5: Light, The Cosmic Messenger3/42Therefore, __________. Help Reset radio waves infrared visible light ultraviolet X rays gamma rays Highest frequency Lowest frequency
12/21/2016 HW#5 - Chapter 5: Light, The Cosmic Messenger