Energy types and resources Flashcards
Where does magnetic energy occur?
Between attracting or repelling magnets
Where does nuclear energy occur?
Between the protons and neutrons of an atom
Where does chemical energy occur?
In bonds between atoms
Where does kinetic energy occur?
In a moving object
Where does electrostatic energy occur?
Between attracting or repelling charges
Where does thermal energy occur?
As vibrations of an object’s atoms
Where does gravitational energy occur?
In an object lifted in a gravitational field
Where does elastic energy occur?
In an object which has been squished or stretched
When does heating occur?
When vibrations pass between adjacent particles
When does a mechanical transfer occur?
When a force acts between objects
How is energy transferred by radiation?
As light or sound waves
When does an electrical transfer occur?
When charged particles move
Efficiency
Useful energy output/total energy output x 100%
How does Fossil Fuel generate energy?
Chemical (in fuel) => thermal (in steam) => kinetic (in turbine) => electrical out
What are the pros of fossil fuels?
Continuous, reliable and energy dense
What are the cons of fossil fuels?
Non-renewable and carbon dioxide/sulphur dioxide emissions
How does nuclear fission generate energy?
Nuclear (in uranium) => thermal (in steam) => kinetic (in turbine) => electrical out
What are the pros of nuclear fission?
Continuous, reliable, energy dense and no carbon dioxide/sulphur dioxide emissions
What are the cons of nuclear fission?
Radioactive waste, non-renewable and expensive to build
How does geo-thermal energy generate electricity?
Thermal (in steam) => kinetic (in turbine) => electrical out
What are the pros of geo-thermal energy?
Doesn’t cause global warming, free thermal energy and small power stations
What are the cons of geo-thermal energy?
Hazardous gases/minerals/heavy metals released and few suitable sites
How does hydro-electric power generate electricity?
Gravitational (in water) => kinetic (in water) => kinetic (in turbine) => electrical out
What are the pros of hydro-electric power?
Reliable, no carbon dioxide/sulphur dioxide emissions, renewable, pumped storage and rain is free
