Energy
- Created by: James Moyle
- Created on: 05-03-13 14:49
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- Energy
- Types
- "Stored"
- Chemical
- Gravitational Potential
- mass x gravitational field strength x height
- For a falling object, GPE is converted into KE
- = 1/2 x mass x velocity squared
- For a falling object, GPE is converted into KE
- mass x gravitational field strength x height
- Elastic
- See Hooke's Law in Forces topic
- Nuclear
- "Moving"
- Light
- Sound
- Heat
- Heat is the flow of energy from High Temperature to Low temperature
- Conduction
- transfer through solids by collisions between atoms or free electrons
- Convection
- Heat transfer through fluids (liquids and gases). Heated fluid becomes less dense and rises. Convection current
- Heat radiation
- Heat transfer by electro-magnetic radiation. Mostly Infrared or microwave
- Evaporation
- Conduction
- Heat is the flow of energy from High Temperature to Low temperature
- Kinetic
- = 1/2 x mass x velocity squared
- Electrical
- p.d. (voltage) = Energy / Charge
- "Stored"
- Unit
- Joule
- J
- Law of Conservation of Energy
- Energy cannot be created or destroyed, only transformed from one type to another
- Types
- "Stored"
- Chemical
- Gravitational Potential
- mass x gravitational field strength x height
- For a falling object, GPE is converted into KE
- For a falling object, GPE is converted into KE
- mass x gravitational field strength x height
- Elastic
- See Hooke's Law in Forces topic
- Nuclear
- "Moving"
- Light
- Sound
- Heat
- Heat is the flow of energy from High Temperature to Low temperature
- Conduction
- transfer through solids by collisions between atoms or free electrons
- Convection
- Heat transfer through fluids (liquids and gases). Heated fluid becomes less dense and rises. Convection current
- Heat radiation
- Heat transfer by electro-magnetic radiation. Mostly Infrared or microwave
- Evaporation
- Conduction
- Heat is the flow of energy from High Temperature to Low temperature
- Kinetic
- Electrical
- p.d. (voltage) = Energy / Charge
- "Stored"
- Sankey diagrams
- Efficiency = Useful Energy Output / Total Energy Input
- The work done is equal to the energy transferred
- Types
- Energy cannot be created or destroyed, only transformed from one type to another
- Energy Resources
- Renewable
- Solar
- Photovoltaic (PV)
- Solar Heating
- Geothermal
- Wind
- Hydroelectric
- Tidal
- Wave
- Biomass
- Solar
- Non-renewable
- Fossil Fuels
- Natural Gas
- Crude Oil
- Coal
- Nuclear
- Fossil Fuels
- Renewable
- Work Done = Force x distance moved
- The work done is equal to the energy transferred
- Power = Work Done / time
- Unit = Watts
- 1W = 1 J/s
- Power = Work Done / time
- Unit = Watts
- 1W = 1 J/s
- 1W = 1 J/s
- Unit = Watts
- Power = Work Done / time
- 1W = 1 J/s
- Unit = Watts
- Types
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