Energy Flashcards
What is energy measured in
Joules and kilojoules
What is energy
The ability to do work
What are the forms of energy
Kinetic Potential Light Chemical Heat Sounds Eletrical Magnetic Nucleur
What is kinetic enegyq
Energy of something moving w
What is potential energy
Stored energy
What is light enegy
Solar panels
Calculater
Plants use it for photosynthesis
What is chemical enegy
Energy stored in bonds between atoms
Eg. Fossil fuels batteries food
What is nucleus engeru
Energy is released ny the spitting or fusion of the nucleus of atoms
What is the. Law of conversion
ENERGY CANNOT BE CREATED OR DESTROYED BUT CAN BE CHANGED FROM ONE FORM TO ANOTHER
What is non renewable energy
Non renewable sources of energy will eventually run out eg.fossil fuels oil cowl gas turf
What are the advantages and disadvantages of non renewable enegy
Advantages
Easy to get
Reasonably cheap
Disadvantages
Causes green house gas emissions and climate change
Causes pollution eg acid rain and smog
What is renewable engy
Renewable sources if energy will not run out eg solar energy , hydro electric ,wind , wave biomass. Geothermal
Wat are the advantages and disadvantages of nuclear energy
Advantages
Would reduce the levels of greenhouse gas and does not cause climate change
In good supply
Disadvantages
Danger if a nucleus accident
Produces radioactive wastes
What is our primary source of enegy
The sun
Waht are examples of how the sun is our primary source of energy
Trees convert light energy from the sun into food energy(photosynthesis) we eat plants to get energy
Fossil fuels are the remains of dead plants and animal that lived millions of years ago. They got their energy from the sun
Weather conditions are linked to the sun: wind and tidal energy depend on the sun
