P3

P3

1. Way to save energy

   • Solar power
   • wind power
   • wave power

2. How to make electricity in an fofssil fuel power station

   • 1st burn fossil fuels
     • In nuclar this dosn't happen
   • 2nd the heat, heats the water to create steam
   • 3rd Steam turns a turbine
   • 4th a coil spins around a magnet
   • 5th makes elctricty

3. National grid

   • Carrys power to our homes
   • we recive 240v in our homes
   • from the genartor the energy steps up to 400,000v
   • Transformers
     • step up transformers
       • Makes the voltage higher
     • Step down transformers
       • Makes the voltage lower

4. How to calculate the cost of energy

   • Kw x h x Kwh
     • Kilo watts x hours x Kilo watts hours
   • Examples
     • Kw x h kwh = cost 15x1.5x10 = 22p

5. Watt is the unit of power

   • correct

6. Sorces of Energy

   • Renuable
   • Non renuable
     • Oil
     • coal
     • gas

7. Joke

8. Nuclar

   • Nuclar waste
     • 3 types
       • HLW
       • ILW
       • LLW
     • takes 100 years to decompose
   • Creates no green hous gasses