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Understanding Energy Transfer: Short vs. Long Waves and Absorption

Learn about different types of energy defined by their wavelengths and which is more powerful. Discover how energy from the Sun reaches Earth and what happens to it upon reaching the surface. Explore concepts like reflected, refracted, and scattered light, the reason why the sky appears blue, and the effects of absorption. Delve into the best absorbers and reflectors of heat to understand heat transfer better.

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Understanding Energy Transfer: Short vs. Long Waves and Absorption

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  1. Take out HW page 1

  2. How are different types of energy defined? by their wavelengths Which is more powerful? Short or long waves? short

  3. All matter (everything) gives off energy!

  4. How does energy get from the Sun to the Earth? What happens to the energy that reaches the Earth’s Surface?

  5. Reflected Light-

  6. Refracted Light-

  7. Scattered Light • Why is the Sky Blue?

  8. Absorbed

  9. 1. On a Hot Summer’s Day, what type of clothing would you wear? Why?2. Why do your feet ‘burn’ when you step onto black parking lots on a hot summer’s day?

  10. Absorbers VS. Reflectors

  11. Best Absorbers dark & rough Best Reflectors light colored & smooth

  12. A Good Absorber is a Good Radiator

  13. Which panel will Heat up Faster?Why?

  14. HW – Page 2 of HandoutQuiz – FRIDAYConduction Lab Due Thursday

  15. LAB: Heat Transfer by Conduction2 page LabGet labs, get into lab groups, read directions. Then, come to back of room to get materials from me.

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