ENERGY AND ELECTRICITY

ENERGY AND ELECTRICITY

1. FORMS OF ENERGY

   • MAGNETIC
     • MAGNETS AND ELECTROMAGNETS
   • KINETIC
     • THE ENERGY IN MOVING OBJECTS
   • HEAT
     • THERMAL
   • LIGHT
     • RADIATION
   • GRAVITATIONAL POTENTIAL
     • STORED ENERGY IN RAISED OBJECTS
   • CHEMICAL
     • FOOD:FATS
   • SOUND ENERGY
     • ENERGY IS RELEASED IN VIBRATING OBJECTS
   • ELECTRICAL
     • ENERGY IN MOVING OR STATIC ELECTRICAL CHARGE
   • ELASTIC POTENTIAL
     • ENERGY STORED IN STRETCHED OR SQUISHED OBJECTS
   • NUCLEAR
     • STORED IN THE NUCLEAS OF ATOMS

2. DEFINITION OF

   • VOLTAGE
     • THE AMOUNT OF PUSH A CELL OR BATTERY HAS
       • POTENTIAL DIFFERANCE BETWEEN VOLTAGE LEVELS BEFORE AND AFTER A RESISTOR OF SOME SORT
         • HARD TO PASS THROUGH SOMETHING E.G. LIGHT BULB
     • VOLTS IS THE MESUREMENT
   • CURRENT
     • HOW EASY IT IS TO PUSH THE ELECTRONS ROUND A CIRCUIT

3. DIFFERENT CIRCUITS

   • PARALLEL
     • BULBS HAVE THERE OWN SEPERET CIRCIUT IN THE CURCIT
       • BULBS ARE ALL THE SAME BRIGHTNESS
         • IF ONE BLOWS THE OTHERS WONT AS IT ISNT THE MAIN CIRCIUT PART
   • SEIRES
     • ALL THE BULBS ARE ON THE SAME LOOP
       • CAUSES DIMMER SECOND BULB
         • AS THE ELECTRONS HAVE GOT HALF THE ELECTRICITY THEY STARTED WITH
           • IF ONE BLOWS THEY ALL BLOW AS THE ELECTRONS NEED TO PASS THROUGH ALL THE BULBS TO COMPLETE THE CIRCUIT
   • CELL IS A SINGLE BATTERY

4. EQUATIONS

   • THE TRIANGLE
     • V=I X R
     • R = V/I
     • I= V/R
   • OHMS LAW
     • V = IR

5. METHODS OF ELECTRICITY GENERATION

   • WIND
     • TURBINE
   • HYDROELECTRIC
     • GEP
   • WAVE
   • NEUCLEAR
     • BOOM!
   • SOLAR
     • PARALEL PHOTOVOLTIV CELL
   • FOSSIL FUELS
     • POLLUTION
   • BIOMASS
     • MAKES STEM TO POWER TURBINE
     • WOOD, DUNG
   • GEOTHERMAL
     • HEAT FROM THE EARTH

6. THE ELECTRICITY NETWORK

   • FROM PLANT
     • TO TRANSFUSER
       • TO NATIONAL GRID
         • TO OUR HOMES
           • TO OUR APPLIANCES
             • (ALL APPLIANCES WILL ALSO HAVE A TRANSFUSER IN TOO)
       • (MAKES IT SAFE)

7. ENERGY CHANGING

   • A LIGHT BULB MIGHT CREATE 10% LIGHT ENERGY BUT 90% HEAT ENERGY
     • THIS WOULD BE LESS EFFIECENT
     • COMMENLY HEAT IS THE WASTE PRODUCT
   • WE SHOW ENERGY USES IN A N ENERGY FLOW DIAGRAM