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C/W 22 nd November 2011

Starter  Write down on the mini white board the types of electromagnetic wave used for communication . (Hint) Remember the types: Gate X Usually Lets In Most Radiation. C/W 22 nd November 2011

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C/W 22 nd November 2011

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  1. Starter  Write down on the mini white board the types of electromagnetic wave used for communication. (Hint) Remember the types: Gate X Usually Lets In Most Radiation

  2. C/W 22nd November 2011 Electromagnetic waves for communicating Keywords: carrier wave modulation Objectives: Must – State which types of electromagnetic waves are used for communication. (C/D) Should – Understand how information is carried using electromagnetic waves. (C/B) Could – Consider why we use specific electromagnetic waves for carrying information. (A/A*)

  3. Complete the table whilst we are discussing the types of radiation.

  4. Visible light, is used in fibre optics, and Morse code........

  5. Microwaves are used in mobile phones, satellite TV, and sat-nav. Not absorbed by the earths atmosphere, can be transmitted into space.

  6. Radio waves are used for: Radio signals, terrestrial TV, and walky-talkies

  7. Infra red is used for: Remote controls  These waves can only travel short distances in air.

  8. C/W 22nd November 2011 Electromagnetic waves for communicating Keywords: carrier wave modulation Objectives: Must – State which types of electromagnetic waves are used for communication. (C/D) Should – Understand how information is carried using electromagnetic waves. (C/B) Could – Consider why we use specific electromagnetic waves for carrying information. (A/A*)

  9. We are going to see how signals are actually broadcast as a wave..... Today’s Jazzy simulation Recap on waves Crest / Peak  a  Displacement+ Time a  Trough

  10. How are sound waves broadcast through the air? 1st we need a high frequency carrier wave.... Then we need to add the sound wave to it that we want to transmit This gives us a modulated carrier wave

  11. We are going to see how signals are actually broadcast as a wave..... Pupils make their own waves using audacity Complete questions on worksheet.

  12. Plenary sketch on your mini white board One type of e-mag wave used for communication and it’s application

  13. Plenary sketch on your mini white board The carrier wave Sound signal to be broadcast Modulated carrier wave

  14. C/W 22nd November 2011 Electromagnetic waves for communicating Keywords: carrier wave modulation Objectives: Must – State which types of electromagnetic waves are used for communication. (C/D) Should – Understand how information is carried using electromagnetic waves. (C/B) Could – Consider why we use specific electromagnetic waves for carrying information. (A/A*)

  15. http://boswellsphysics.blogspot.com/ Or google ‘Boswells physics’

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