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Waves and the Electromagnetic Spectrum.pptx


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Waves and the Electromagnetic Spectrum.pptx

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