Physics - OCR Gateway - Foundation Tier - P6
- Created by: lala2127
- Created on: 14-06-18 14:02
View mindmap
- Physics - P6
- Everyday Speed
- Walking
- 1.4 m/s
- Running
- 3 m/s
- Cycling
- 5.5 m/s
- Cars - rural
- 13 m/s
- Cars - motorway
- 31 m/s
- Trains
- 55 m/s
- Breeze
- 5 m/s
- Gale
- 20 m/s
- Sound in the air
- 340 m/s
- Walking
- Acceleration and Deceleration
- Acceleration = change in velocity/time taken
- Deceleration = (final velocity - initial velocity) / time
- Non-Renewable Energy Sources
- They will run out
- Fossil fules
- Coal
- Oil
- Natural gas
- Non - renewable power stations
- Heat water to make steam
- Fossil fuels are burnt
- Steam causes a turbine to move
- Turbine is attached to a generator which produces electricity
- Environmental problems
- Fossil fuels release CO2
- CO2 creates global warming and climate change
- Coal mining makes a mess of the land
- Nuclear waste is toxic
- Renewable Energy Sources
- Bio-fuels
- Made from plant products and animal waste
- Bio-fuels can be burnt to produce electricity
- Wind power
- Generators inside produce electricity
- Only work in the wind
- Solar cells
- Generate electricity from the sun
- No pollution
- Bio-fuels
- Electricity and the National Grid
- Alternating current (a.c.)
- Electricity in your home
- 50 Hz, 230 V
- Direct current (d.c.)
- Batteries and cells
- Direct voltage
- The national grid
- Power station to step up transformer to step down transformer to consumers
- Transformers change the p.d. of an a.c. supply
- Alternating current (a.c.)
- Everyday Speed
Comments
No comments have yet been made