Electricity
- Created by: ukgamer321
- Created on: 23-04-14 18:09
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- Electricity
- Types
- wind
- advantages
- environmentally friendly
- never runs out
- disadvantages
- not reliable
- visual pollution
- advantages
- tidal
- advantages
- never runs out
- environmentally friendly
- disadvantages
- prevents access by boats
- alters habitat- flooding
- advantages
- solar
- advantages
- cost effective and reliable
- no pollution
- disadvantages
- only reliable during the day
- initial cost are high
- advantages
- nuclear
- advantages
- provides lots of energy
- doesn't rely on weather
- disadvantages
- runs out
- damages environment
- advantages
- biomass
- advantages
- relatively quick
- natural source
- disadvantages
- habitats lost
- burning vegetation increases CO2 levels
- advantages
- geothermal
- advantages
- no environmental problems
- free energy
- disadvantages
- only in volcanic areas
- expensive power plant
- advantages
- wave
- advantages
- no fuel costs
- no pollution
- disadvantages
- visual pollution
- hazard for boats
- advantages
- fossil fuels
- advantages
- provides lots of energy
- doesn't rely on weather
- disadvantages
- non renewable
- damages environment
- advantages
- hydroelectric
- advantages
- reliable
- creates electricity quickly
- disadvantages
- ruins landscape
- flooding
- advantages
- wind
- Energy forms examples
- Kettle electrical------> heat+sound
- torch chemical-----> light+heat
- Efficiency
- efficiency= useful out __________ total in
- useful= total x efficency
- Power
- energy= power x time
- power= energy ________ total
- National Grid
- electricity pylons
- why are they overground
- cheaper and easier to fix
- easier to build
- easier to avoid gas/water pipes
- gets over river, canals
- why are they underground
- safer for fishers and kits
- no visual pollution
- why are they overground
- Step up transformers increase voltage and decrease current, so not as much energy is wasted by heat
- electricity pylons
- Types
- Step up transformers increase voltage and decrease current, so not as much energy is wasted by heat
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