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Understanding Energy: Short vs. Long Waves and Solar Transfer

Explore the definitions of energy based on wavelengths and learn why short or long waves vary in power. Discover how energy travels from the Sun to Earth, including the processes of reflection, refraction, and scattering. Delve into the reasons behind the blue sky and the impact of materials as absorbers or reflectors of heat. Prepare for a quiz on heat conduction and experiment with heat transfer in a laboratory setting.

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Understanding Energy: Short vs. Long Waves and Solar Transfer

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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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