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






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






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






4. 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






5. Mechanical energy (wind) to electricity






6. Barrage dam






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






8. Air heated more from ground near equator






9. Pockets of hot water or steam underground






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






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






12. Energy resource that can replenish itself






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






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






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






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






17. Replenish themselves or are continuously present






18. Burning to get heat and electricity






19. Most used renewable resource in the United States






20. Time - heat - pressure






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






22. Lowest rank of coal






23. Most used energy source in the united states






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






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






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






27. Bacteria ferment BM with sugars






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






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






30. Produces electricity and heat






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






32. Radiant energy from the sun heats Earth and atmosphere






33. Heat and Electricity






34. Burning wood






35. Solid to liquid biomass with chemistry and heat






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






37. Photovoltaic (PV) devices or Solar Energy Plant






38. Air cools more quickly over land than water






39. Compact biomass with high temperatures - increading the VED






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






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






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






43. Burning 'rubbish.'






44. Hardness - volatility


45. Just burning biomass