Energy stores and transfers

• Electricity can be generated by burning coal, oil or gas (fossil fuels) which releases carbon dioxide into the atmosphere
• Energy cannot be created or destroyed
• Kinetic energy is the energy of a moving object, measured in joules (J)
• Internal energy is the energy inside a system, measured in joules.
• Elastic potential energy is the energy stored in a stretched spring or elastic object.
• Chemical energy is the energy released when chemical reactions occur.
• Gravitational potential energy is the energy an object has due to its position relative to Earth's surface.
• Nuclear energy is the energy released during nuclear fission or fusion.
• Electrical energy is the energy stored in the electrical potential difference between two points in a circuit.
• Magnetic energy is the energy stored in a magnet's magnetic field.
• Conduction is the transfer of heat energy in solids
• Convection is the transfer of heat in liquids and gas
• Radiation is the transfer of heat energy without particles
• Energy can be stored or transferred but cannot be created or destroyed.
• Temperature can be measured
• Heat is an energy that can be transferred
• Non renewable energy sources are: Fossil fuels, Nuclear, Hydroelectric, Solar, Wind, Geothermal
• Fossil fuels are non-renewable. They are formed from the remains of plants and animals that lived millions of years ago.
• Coal was formed from plants and animals
• Oil and natural gas were formed from sea creatures
• Renewable energy is energy that is replenished as it is used.
• Hydroelectricity uses water falling through turbines to generate electricity
• Solar panels convert sunlight into electrical energy
• Fossil fuels are non-renewable because they take millions of years to form from dead plants and animals buried under layers of rock and dirt
• Biomass burns organic matter such as wood or crops to produce heat, steam and electricity