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Do now!

Do now!. Can you remember what wave intensity is??. Electromagnetic spectrum. Visible light. Visible light. λ ≈ 700 nm. λ ≈ 420 nm. Ultraviolet waves. λ ≈ 700 - 420 nm. Ultraviolet waves. λ ≈ 700 - 420 nm. λ ≈ 10 -7 - 10 -8 m. X-rays. λ ≈ 700 - 420 nm. λ ≈ 10 -7 - 10 -8 m.

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Do now!

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  1. Do now! Can you remember what wave intensity is??

  2. Electromagnetic spectrum

  3. Visible light

  4. Visible light λ ≈ 700 nm λ ≈ 420 nm

  5. Ultraviolet waves λ ≈ 700 - 420 nm

  6. Ultraviolet waves λ ≈ 700 - 420 nm λ ≈ 10-7 - 10-8 m

  7. X-rays λ ≈ 700 - 420 nm λ ≈ 10-7 - 10-8 m

  8. X-rays λ ≈ 700 - 420 nm λ ≈ 10-7 - 10-8 m λ ≈ 10-9 - 10-11 m

  9. Gamma rays λ ≈ 700 - 420 nm λ ≈ 10-7 - 10-8 m λ ≈ 10-9 - 10-11 m

  10. Gamma rays λ ≈ 700 - 420 nm λ ≈ 10-7 - 10-8 m λ ≈ 10-12 - 10-14 m λ ≈ 10-9 - 10-11 m

  11. Infrared waves λ ≈ 700 - 420 nm λ ≈ 10-7 - 10-8 m λ ≈ 10-9 - 10-11 m λ ≈ 10-12 - 10-14 m

  12. Infrared waves λ ≈ 700 - 420 nm λ ≈ 10-7 - 10-8 m λ ≈ 10-4 - 10-6 m λ ≈ 10-9 - 10-11 m λ ≈ 10-12 - 10-14 m

  13. Microwaves λ ≈ 700 - 420 nm λ ≈ 10-4 - 10-6 m λ ≈ 10-7 - 10-8 m λ ≈ 10-9 - 10-11 m λ ≈ 10-12 - 10-14 m

  14. Microwaves λ ≈ 700 - 420 nm λ ≈ 10-4 - 10-6 m λ ≈ 10-7 - 10-8 m λ ≈ 10-9 - 10-11 m λ ≈ 10-2 - 10-3 m λ ≈ 10-12 - 10-14 m

  15. Radio waves λ ≈ 700 - 420 nm λ ≈ 10-4 - 10-6 m λ ≈ 10-7 - 10-8 m λ ≈ 10-9 - 10-11 m λ ≈ 10-2 - 10-3 m λ ≈ 10-12 - 10-14 m

  16. Radio waves λ ≈ 700 - 420 nm λ ≈ 10-4 - 10-6 m λ ≈ 10-7 - 10-8 m λ ≈ 10-9 - 10-11 m λ ≈ 10-2 - 10-3 m λ ≈ 10-1 - 103 m λ ≈ 10-12 - 10-14 m

  17. Electromagnetic spectrum λ ≈ 700 - 420 nm λ ≈ 10-4 - 10-6 m λ ≈ 10-7 - 10-8 m λ ≈ 10-9 - 10-11 m λ ≈ 10-2 - 10-3 m λ ≈ 10-1 - 103 m λ ≈ 10-12 - 10-14 m

  18. What do they all have in common? λ ≈ 700 - 420 nm λ ≈ 10-4 - 10-6 m λ ≈ 10-7 - 10-8 m λ ≈ 10-9 - 10-11 m λ ≈ 10-2 - 10-3 m λ ≈ 10-1 - 103 m λ ≈ 10-12 - 10-14 m

  19. What do they all have in common? • They can travel in a vacuum • They travel at 3 x 108m.s-1 in a vacuum (the speed of light) • They are transverse • They are electromagnetic waves (electric and magnetic fields at right angles to each oscillating perpendicularly to the direction of energy transfer)

  20. Mini-book

  21. Mini-book • One type of EM wave for each page • Each page should contain the range of wavelengths • Each page should contain uses and other interesting information

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