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Unit 4 – Sun-Earth-Moon Energy Transfer

Unit 4 – Sun-Earth-Moon Energy Transfer. Solar Fundamentals. The Sun is the source of all energy in the atmosphere transferred through radiation, conduction and convection. Transferring Heat Energy.

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Unit 4 – Sun-Earth-Moon Energy Transfer

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  1. Unit 4 – Sun-Earth-MoonEnergy Transfer

  2. Solar Fundamentals • The Sun is the source of all energy in the atmosphere transferred through radiation, conduction and convection.

  3. Transferring Heat Energy • Here are three easy things to know about the way heat flows:1)  There has to be a temperature difference. Energy only flows as heat if there is a temperature difference. 2)   Energy as heat flows from a higher temperature to a lower temperature.3)   The greater or larger the difference in temperature, the faster the energy flows.

  4. How is energy transferred on Earth? • 1. Conduction • 2. Convection • 3. Radiation

  5. Conduction • Heat energy moves from molecule to molecule by collisions. • Direct contact

  6. Convection • Energy transferred by temperature and density differences, in liquids and gases only

  7. CONVECTION OCCURS IN THE ATMOSPHERE

  8. Radiation • The release and transfer of energy in the form of electromagnetic waves.

  9. Specific Heat • Specific Heat tells you how much energy is needed to change the temperature of 1 gram of a substance 1° C How will a substance respond to heat energy? • High Specific Heat – takes a lot of energy to raise its temperature • Low Specific Heat – doesn’t take a lot of energy to raise its temperature

  10. Earth’s magnetic field • Charged particles given off by the Sun (radiation) are deflected by the Earth’s magnetic field. • These particles interact with our atmosphere and create the auroras.

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