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  • Electromagnetic Spectrum - Introduction - Imagine the Universe!
    Advanced Basic The Electromagnetic Spectrum The electromagnetic (EM) spectrum is the range of all types of EM radiation Radiation is energy that travels and spreads out as it goes – the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation The other types of EM radiation that make up the
  • Regions of the Electromagnetic Spectrum
    Regions of the Electromagnetic Spectrum Listed below are the approximate wavelength, frequency, and energy limits of the various regions of the electromagnetic spectrum
  • Electromagnetic Spectrum - Imagine the Universe!
    The electromagnetic spectrum can be expressed in terms of energy, wavelength or frequency Each way of thinking about the EM spectrum is related to the others in a precise mathematical way Scientists represent wavelength and frequency by the Greek letters lambda (λ) and nu (ν)
  • Electromagnetic Spectrum Quiz - Imagine the Universe!
    Electromagnetic Spectrum Quiz Which of the following is correct in order of lowest to highest energy? [A] X-rays, Visible Light, Microwave [B] Ultraviolet, Visible Light, Gamma-rays [C] Microwave, Visible Light, Gamma-rays The photons that make up radio waves travel at the same speed as the photons that make up visible light [A] True [B] False
  • Discovering the Electromagnetic Spectrum - Imagine the Universe!
    It took a bit longer for scientists to discover the higher-energy (shorter wavelength) light in the electromagnetic spectrum Left: Portrait of Wilhelm Conrad Röntgen who is credited with discovering X-rays Right: Mrs Röntgen's hand, the first X-ray picture of the human body ever taken
  • Electromagnetic Spectrum Cool Fact - Imagine the Universe!
    The Electromagnetic Spectrum Our eyes cover less than one octave of the electromagnetic spectrum Astronomical observations from low frequency radio waves to ultra-high energy gamma-rays cover more than 65 octaves
  • Electromagnetic Spectrum Quiz - Imagine the Universe!
    Electromagnetic Spectrum Quiz Which of the following is correct in order of lowest to highest frequency? [A] X-rays, Visible Light, Microwave [B] Ultraviolet, Visible Light, Gamma-rays [C] Microwave, Visible Light, Gamma-rays This type of emission maps the dust between stars [A] Infrared [B] Ultraviolet [C] X-rays [D] Gamma-rays
  • Spectra - Introduction - Imagine the Universe!
    The resultant rainbow is really a continuous spectrum that shows us the different energies of light (from red to blue) present in visible light But the electromagnetic spectrum encompasses more than just optical light It covers all energies of light, extending from low-energy radio waves, to microwaves, to infrared, to optical light, to ultraviolet, to very high-energy X-rays and gamma rays
  • Student Worksheet: A Calculation Investigation
    Student Worksheet: EM Spectrum - A Calculation Investigation You are given the following two equations that express the relationships between the speed, the wavelength, the energy and the frequency of light: c = l n speed = wavelength x frequency E = hn energy = Planck's constant x frequency
  • Background - Electromagnetic Radiation - Imagine the Universe!
    What is Electromagnetic (EM) Radiation? Although it would seem that the human eye gives us a pretty accurate view of the world, we are literally blind to much of what surrounds us A whole Universe of color exists, only a thin band of which our eyes are able to detect; an example of this visible range of color is the familiar rainbow (an example of a "spectrum") The optical spectrum ranges in





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