The sciences Unit 5

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lauratwinoaks
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228366
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The sciences Unit 5
Updated:
2013-08-01 22:36:43
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sciences Unit
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The sciences Unit 5
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  1. ELECTRICAL CONDUCTIVES
    THE EASE WITH WHICH ELECTRONS CAN FLOW THROUGH A MATERIAL
  2. ELECTRICAL RESISTANCE
    PHENOMENOM OF ELECTRONS MOVING THROUGH A METAL COLLIDING WITH IONS OF THAT METAL.  SOME ENERGY IS THEN LOST IN THE COLLISIONS & IS CONVERTED TO FASTER IONIC VIBRATIONS (WE CALL IT HEAT)
  3. COMPUTER
    BASIC UNIT IS A TRANSISTOR

    OPERATES SEQUENTIALLY SOMETIMES PARALLEL BUT NOT LIMITED IN NUMBER
  4. BRAIN
    BASIC UNIT IS NERVE CELL

    EACH OF TRILLIONS OF CELLS ARE CONNECTED TO THOUSANDS OF SURROUNDING CELLS

    HIGHLY CONNECTED-MORE THAN ANY KNOW SYSTEM
  5. ATOM PRINCIPLES
    WHAT HAPPENS INSIDE THE NUCLEUS IS LARGELY UNRELATED TO THE CHEMISTRY OF THE ATOM

    NUCLEAR ACTIVITY NOT DICTATED BY ELECTRONS
  6. PROTONS & ELECTRONS
    DIFFER IN THEIR MASS & ENERGY
  7. ISOTOPES
    DIFFERENT MASSES

    NUMBER OF PROTONS + NUMBER OF NEUTRONS = MASS NUMBER
  8. RADIOACTIVITY/RADIOACTIVE DECAY
    NUCLEI DISINTEGRATE SPONTANEOUSLY

    PARTICLES RELEASED INTO SURROUNDING ENVIRONMENT AT HIGH SPEED
  9. NUCLEAR FISION
    THE SPLITTING OF A NUCLEUS

    REQUIRES INPUT OF ENERGY

    • RELEASES TREMENDOUS AMOUNT OF ENERGY
    • EX)  POWER PLANT, NUCLEAR BOMBS
  10. NUCLEAR FUSION
    THE COMBINING OF ATOMIC NUCLEI

    RESULT OF HIGH SPEED COLLISION OR THE NUCLEI

    • FORM ALPHA PARTICLE
    • EX)  STARS

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