1. Renewable Energy Review Game
Chapter 18
Renewable Energy
Review Game

2. Wood, manure and grain are all examples of what?

3. Biomass

4. What biofuel is produced mainly from corn in the United States?

5. Ethanol

6. What device takes advantage of the fact that the ground stays at a constant temperature a few feet below the surface and uses this to heat a house in the winter and cool it in the summer?

7. Ground source heat pump

8. A cost of which renewable energy resource is that it can be harmful to birds and bats?

9. Wind power

10. What renewable energy source can be utilized to generate electricity, and heat homes and water in locations where there are geysers, volcanoes, and hot springs?

11. Geothermal

12. What part of a dam stores water and allows it to spin the turbine at a steady rate?

13. Reservoir

14. The run-of-the-river approach to hydropower does not disturb habitats
The run-of-the-river approach to hydropower does not disturb habitats. However, what is a a drawback of this method?

15. It does not generate a steady flow of electricity; if the river is low/slow moving little electricity will be generated.

16. Tidal energy takes advantage of water movement between high and low tide. During which time period, does the moving water spin a turbine?

17. Low tide as the water leaves

18. What is a requirement for a location to be able to produce electricity using tidal energy?

19. There must be a large difference in height between high and low tide.

20. In what process are water molecules broken down into oxygen gas and hydrogen gas by and electric current?

21. electrolysis

22. What type of liquid is required to generate electricity using the method of ocean thermal energy conversion (OTEC)?

23. One with a low boiling point

24. Is a flat-plate solar collector used to heat water an example of active or passive solar heating?

25. Active

26. List an example of passive solar heating.

27. South facing windows
Heavy curtains/shades

28. What is another name for a solar panel?

29. Photovoltaic Cell

30. The plates of a solar panel are made mainly of what material?

31. Silicon

32. When sunlight stikes a solar panel, what atomic particle is knocked loose from silicon atoms and used to generate an electric current?

33. Electron

34. List a similarity between solar and wind power as renewable energy sources.

35. Both have high start up costs but are inexpensive to operate and maintain
Neither pollute the air
Both produce variable amounts of electricity based upon the availability of wind or sun

36. Besides through electrolysis, how else can hydrogen gas be extracted?

37. From the methane in natural gas
Heat given off by nuclear reactor used to split water into hydrogen and oxygen (future)
Algae (future)

38. What technology uses mirrors to focus sunlight to the top of a tall tower in order to heat a liquid and generate the steam needed to turn a turbine?

39. Concentrating Solar Power (CSP)

40. List a renewable resource that could be turned into a nonrenewable resource if it is used quicker than it is produced.

41. Geothermal
Biomass

42. While extracting hydrogen gas from the methane in natural gas is less expensive than extracting it via electrolysis, why is this method not a desirable long-term as a source of hydrogen gas?

43. Because it produces carbon dioxide which is a greenhouse gas

44. In what location do wind turbines produce more power and are therefore more profitable; on land or offshore?

45. Offshore

46. What process occurs in a fuel cell?

47. The opposite of electrolysis; hydrogen is used to produce electricity

48. Stoves that burn corncobs are using what type of renewable energy?

49. Biomass

50. What turns the turbines to generate electricity in a geothermal power plant?

51. Steam

52. What is ONE disadvantage of hydropower?

53. Harms ecosystems
Construction damages landscape causing erosion and landslides
Prevent sediments from getting downstream

54. What is a benefit on wind power?

55. Doesn’t cause pollution
Highly efficient
Can help areas become self-sufficient
Wind farms are less expensive once up and running

56. What component of a wind turbine converts the speed of the rotor to the required generator speed?

57. gearbox

58. There are multiple methods to produce hydrogen fuel
There are multiple methods to produce hydrogen fuel. Currently, which is the most common and least expensive?

59. Breakdown of methane

60. What are the products of the breakdown of methane?

61. Hydrogen and carbon dioxide gas

62. What is an advantage of using hydrogen as a source of energy?

63. Usually produces few pollutants
Hydrogen is most abundant element
Can be stored and transported

64. Ethanol is an example of a biofuel made from corn
Ethanol is an example of a biofuel made from corn. Under what circumstances could this renewable energy source change into a nonrenewable source?

65. If the ethanol is used quicker than the corn is grown