Test your basic knowledge |

Renewable Energy

Subject : science
Instructions:
  • Answer 45 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Replenish themselves or are continuously present






2. Hardness - volatility


3. Most used energy source in the united states






4. Where the most Geothermal Energy is produced in all of the United States






5. High start-up cost - Unreliable - Energy companies see it as a supplemental power - Strong winds usually not near population - Energy grids are not set up for wind






6. Bacteria breaks biomass down without oxygen with product mixed gas. LFG's






7. Heat and Electricity






8. Air is heated from ground - warm air flows upward - cold air replaces it






9. Heat is recovered as steam or hot water to: 1. Create electricity 2. Heat buildings






10. Natural gas that is super cooled to gas phase so it can be transported easier/safer






11. Release less than 1% of CO2 - Hydrogen Sulfide pollution - 97% less acid rain pollutants - Sources of geothermal are often National Treasures






12. Acidic precursors from coal mines get into surrounding water sources due to rain flushing them out






13. Most used renewable resource in the United States






14. Energy resource that can replenish itself






15. Bacteria ferment BM with sugars






16. Time - heat - pressure






17. Same as pyrolysis BUT - more heat and less gas






18. Pockets of hot water or steam underground






19. Finite supply being used faster than they can be replenished






20. Produces electricity and heat






21. Air heated more from ground near equator






22. Energy that can be obtained from movement of water due to gravitational pull of sun - moon - and Earth's rotation.






23. Pumping water into an oil well to increase pressure and improve recovery






24. Lowest rank of coal






25. Barrage dam






26. Volumetric energy density---- increased by pelletisation






27. Burning to get heat and electricity






28. The difference between low and high tide. the height difference.






29. Secondary Pollution (Toxic materials and alcohols - Blocking the sun for some animals - No direct pollution though!) - Bird death ray - Startup cost






30. Burning wood






31. Just burning biomass






32. It's reliable and consistent - It gives off very little pollution - Lessen the burden of fossil fuels and nuclear energy!






33. Air cools more quickly over land than water






34. Shifting of ground as a result of drilling/mining under it






35. Solid to liquid biomass with chemistry and heat






36. Environmental Impact - High startup cost - Low efficiency in some cases






37. Compact biomass with high temperatures - increading the VED






38. Radiant energy from the sun heats Earth and atmosphere






39. Naturally occurring substance that can potentially be extracted using modern technology






40. Photovoltaic (PV) devices or Solar Energy Plant






41. What country leads the world in wind energy generating?






42. Mechanical energy (wind) to electricity






43. Burning 'rubbish.'






44. Least expensive alternate energy - Sustainable - Renewable - No carbon emission - Once tower is up - almost no cost to maintain






45. Known deposits which can be extracted from profitably using modern technology under certain economic conditions