Energy sources Flashcards
advantages of renewable
- never run out
-dont produce greenhouse gases - dont create radioactive waste products
disadvantages of renewable
- noisy
-not currently able to meet world demand
-unreliable
is nuclear renewable
No, it is a finite material mined from the ground (uranium)
How does nuclear work
Energy released from the nucleus (core of atoms) made up of protons and neutrons
Advantages and disadvantages of nuclear
+ve
- low-carbon
- small carbon footprint compared to other fossil fuels
- safe and reliable
-ve
- expensive
- risk of accident
- impact on the environment
How does wind power work
Power obtained by harnessing the energy of wind using wind turbine. Turns kinetic into electrical energy
Wind power +ve and -ve
+ve
- doesn’t require fossil fuels
- never runs out
- efficient
-ve
- depends on weather, unreliable
- noisy
- blades can harm animals
What is wave power
Converts energy of waves to electricity
Wave power +ve and -ve
+ve
- not very expensive
- no pollution is produced
-ve
- difficult to build
- expensive to build
Tidal power description
Tidal energy is power produced by the surge of ocean waters during the rise and fall of tides. Converts kinetic into electricity
Tidal power +ve and -ve
+ve
- needs no fuel
- no pollution
- little harm to marine animals
- constant and reliable
-ve
- very expensive
- damages local marine ecosystems
Hydroelectric power description
Hydroelectric energy is a form of renewable energy that uses the power of moving water to generate electricity. Converts kinetic into electricity
Hydroelectric +ve and -ve
+ve
- reliable
- no harmful emissions
-ve
- need to flood an area, damage environment
- people forced to move
- expensive
- releases greenhouse gases
Solar power description
When sunlight hits the earth, it is captured by solar panels which convert it into electricity
Geothermal energy description
Energy made by using within the earth
