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Waves and the Electromagnetic Spectrum.pptx
 

Waves and the Electromagnetic Spectrum.pptx

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    Waves and the Electromagnetic Spectrum.pptx Waves and the Electromagnetic Spectrum.pptx Presentation Transcript

    • Waves and the Electromagnetic Spectrum
      What are the different groups of the electromagnetic spectrum?
      Are there any risks to our health from electromagnetic waves?
    • Wavelength and energy
    • The Electromagnetic Radiation Quiz
      The answer will always be one of the 6 groups
      Radio wave
      Microwave
      Infrared
      Visible
      Ultraviolet
      Xray
      Gamma
      (Except question 10)
    • Question 1
      What ray is used to image the bones in your body?
    • Question 2
      What group in the electromagnetic (em) spectrum has the lowest frequency?
    • Question 3
      What group of the spectrum is between radio waves and infrared?
    • Question 4
      Which type of radiation gives you sun burn?
    • Question 5
      Which type of radiation does your TV remote use to change channels?
    • Question 6
      Which type of electromagnetic radiation has the highest energy?
    • Question 7
      Which types of electromagnetic radiation can damage cells and potentially cause cancer in high doses because of their high penetration power?
      There are 2 groups that this could be in.
    • Question 8
      Which type of electromagnetic radiation heats water molecules and is causing concern because they are used in mobile phones and humans are mostly water.
    • Question 9
      Which types of electromagnetic radiation have (probably) no harmful effects?
      There are 2 types of e/m radiation that probably do no harm and 1 that does very little harm.
    • Question 10
      Is ultrasound a type of Electromagnetic radiation?
      Yes/no.