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. Most used energy source in the united states






2. Compact biomass with high temperatures - increading the VED






3. Mechanical energy (wind) to electricity






4. Lowest rank of coal






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. Just burning biomass






7. Replenish themselves or are continuously present






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






9. Burning wood






10. Barrage dam






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






12. Most used renewable resource in the United States






13. Heat and Electricity






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






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






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






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






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






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






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






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






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






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






24. Solid to liquid biomass with chemistry and heat






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






26. Time - heat - pressure






27. Burning to get heat and electricity






28. Energy resource that can replenish itself






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






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






31. Pockets of hot water or steam underground






32. Bacteria ferment BM with sugars






33. Air cools more quickly over land than water






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






35. Produces electricity and heat






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






37. Photovoltaic (PV) devices or Solar Energy Plant






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






39. Hardness - volatility


40. Air heated more from ground near equator






41. Burning 'rubbish.'






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






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






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






45. Radiant energy from the sun heats Earth and atmosphere