Ch 26-1 The sun
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Ch 26-1 The sun

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    Ch 26-1 The sun Ch 26-1 The sun Presentation Transcript

    • The Sun 26.1 Energy From the Sun Forces in Balance Atmosphere Features
    • Energy From the Sun
      • Sun Give of Electromagnetic Radiation = Energy that is given off in Waves
      • Ex. Ultraviolet Light = Sun Burn
      • Energy for the sun = Nuclear Fusion in the core…
      • Small nuclei combine with other small nuclei making a massive nuclei & releasing lots of energy
    • Fusion Reaction
      • Deuterium-deuterium reactions - Two deuterium atoms combine to form a helium-3 atom and a neutron.
    • Radio Waves Visible Light X-rays Radiation Microwaves
    • Forces in Balance
      • The sun is stable because of two forces
      • The pressure of nuclear fusion pushing outward
      • The force of gravity pulling inward
    • Atmosphere
      • Sun’s Atmosphere is made up of 3 layer
      • Photosphere = Inner layer of atmosphere —
      • The visible surface of the sun —
      • Has a bubbly appearance called Granules
    • Chromosphere
      • Chromosphere = Middle layer of atmosphere—
      • Name = sphere of color can be seen when photosphere is blocked
    • Corona
      • Corona = Outer layer of atmosphere—
      • Gasses in layer a very hot 1million Kelvins—
      • Beginning of solar winds = charged particle that flow out from the Corona—
      • Earth magnetic field deflects cause the auroras
                          
    • Features
      • Sunspots = Areas of gas in the photosphere that are cooler than surrounding gases
      • Prominences = are huge loops of gas that erupt from sunspot regions
      • Solar Flares = a sudden release of energy from sun