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Light Section 3

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PRESENTATION OUTLINE

Light is Wavey

Section 3 in the textbook p212

We’ve looked at the basic ideas of reflection and refraction.

Define amplitude, frequency and wave length.

Loosen a string and what happened to amplitude, wavelength and frequency?

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What was the relationship between wavelength and frequency?

How does amplitude, wave length and frequency manifest as light?

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Amplitude is intensity!

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Wavelength determines colour or type of radiation.

Perception via Wavelengths

  • Radio waves what would you see?
  • Sound waves
  • X rays
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Ripple tank

Prism and light

page 215
Replicate Newton’s experiment - two prisms, and your phone light

Electromagnetic Spectrum

Pages 216-217
What creatures perceive beyond our range?

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Read Pages 218 - 227.

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Page 229

Discuss the questions and submit to Showbie by Friday

Google Monster’s IlluminEssence

Is the design based on research or narratives?