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






2. Air heated more from ground near equator






3. Mechanical energy (wind) to electricity






4. Most used energy source in the united states






5. Replenish themselves or are continuously present






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






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






8. Heat and Electricity






9. Bacteria ferment BM with sugars






10. Time - heat - pressure






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






12. Produces electricity and heat






13. Energy resource that can replenish itself






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






15. Lowest rank of coal






16. Burning 'rubbish.'






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






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






19. Barrage dam






20. Hardness - volatility


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






22. Air cools more quickly over land than water






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






24. Solid to liquid biomass with chemistry and heat






25. Just burning biomass






26. 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






27. Burning wood






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






29. Radiant energy from the sun heats Earth and atmosphere






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






31. Compact biomass with high temperatures - increading the VED






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






33. Most used renewable resource in the United States






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






35. Photovoltaic (PV) devices or Solar Energy Plant






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






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






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






39. Burning to get heat and electricity






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






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






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






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






44. Pockets of hot water or steam underground






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