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What are the differnet types of energy?
Light, sound, thermal, chemical, electrical, mechanical, nuclear
Where does light energy come from?
the sun, candles, light bulbs, torches
What is heat?
The flow of thermal energy
What is the main source of thermal energy on Earth?
the sun
What are sources of thermal energy?
the sun, fossil fules, coal, natural gas
What are examples of sound energy?
the noise of the wind, music on the radio
What are examples of chemical energy?
eating food, batters in a tv remote control, petrol in a car
What is electrical energy used for?
light, sound, heat, movement
How is nuclear energy made?
splitting an atom of uranium
How is energy measured? (unit)
joules or kilowatt per hour
What is mechanical energy?
Kinetic energy and potential energy
What are the advantages of solar energy?
does not pollute atmosphere, does not create dangerous waste products, not dangerous for health
What are the disadvantages for solar energy?
it is not distributed equally, solar panels need a lot of space
What are examples of renewable energy sources?
the sun, wind, water, biomass, heat from the earth
What are the advantages of wind energy?
wind turbines can be used around the world, they are cheap
What are the disadvantages of wind energy?
it is not reliable, wind turbines can have environmental impact, wind turbines kill birds
