Energy II Study Sheet



1. All of the energy which we use comes from the _______.

2. What produces wind?

3. If one area is warmer that another, which way will the wind blow?

4. Green plants have a chemical called _____________.

5. __________ traps the energy of the sun.

6. Plants use the trapped energy of the sun to convert_________

_______ and ________ into glucose.

7. What are the two ways that we get our energy to live?



8. The energy stored in fossil fuels originally came from the ____.

9. Fossil fuels come from the remains of dead _______ and _______ that lived at least_________________ years ago.

10. What drives off the hydrogen to create coal?

11. Coal is pure ________.

12. _______ is produced from the remains of dead ferns and mosses.

13. ________ and ______ are produced from the remains of dead ____

__________ which died and sank to the bottom of the sea and became covered by ________ and _____.

14. ________, ________ and the action of ___________ convert the remains of dead sea organisms into oil and natural gas.

15. Another name for natural gas is _________.

16. Why are coal, oil and natural gas considered nonrenewable resources?

17. When did human population reach one billion?

18. When did human population reach two billion?

19. When did human population reach four billion?

20. When did the human population reach eight billion?

21. _________ is the best grade of coal.

22. _________ coal has the highest energy content.

23. _________ coal contains more sulfur than any other type of coal.

24. _________ coal has the lowest energy of all the coals.

25. List the three coals from highest to lowest energy.

Highest_________ Second highest___________ Lowest__________

26. List the three coals from most to least sulfur content.

Most___________ Second most__________ Least____________

27. Hydrogen is very__________ and dangerous to ___________.

28. Nuclear power plants, like Waterford III use ______ _________ to produce the steam used to power the turbines which generate electricity.

29. Fission is the _______ of the _______ into two or more smaller ________.

30. In fission, a _______ is shot at the nucleus of ________ _____.

31. What is the major problem associated with nuclear fission?

32. ________ is the energy released when two or more nuclei join.

33. The energy of the _____ is the energy of nuclear fusion.

34. What is the drawback to using fusion?

35. If ______ _____ could be accomplished, it could be the answer to almost all of the world's energy needs.

36. On the sun, two hydrogens are fused to form _________.

37. The ultimate answer to the world's energy needs will be the _____.

38. The suns energy is _____, ______, and ______.

39. _______ _______ _______ is energy obtained from sunlight without the use of pumps or motors to aid the flow of heat.

40. _______ _______ _______ is a system that collects and stores energy from the sun and uses a fan or a pump to circulate heated air or water.

41. Solar generated electricity involves using ________ to concentrate the sun's heat so that water can be heated to over ______ degrees Celsius. This produces the steam which is used to turn the _______ which generates electric current.

42. ______ _____ are used to directly convert solar energy into electricity.

43. ______ _____ are made of _______,______, or _______, elements which release electrons when light strikes them.

44. Presently, experimentation is being conducted to power ______ and _______ _______ using solar cells.

45. __________ _______ is the use of falling water to generate electricity.

46. What are two ways that hydroelectric power plants can be built?

47. Presently, _____% of electric power in the United States comes from hydroelectric power plants.

48. Hydroelectric power plants are ______ and ____-________.

49. Once a hydroelectric power plant is in place, there is almost ___ _____ for this energy.

50. What are two reasons that make it difficult to construct a hydroelectric power plant?

51. ______ is created by the unequal heating of the earth's surface.

52. Historically, people have used the energy of the wind to _______,________ and _______.

53. In windy areas, more and more people are using a ______ _______ to generate electricity.

54. Why must power companies pay those who produce excess wind generated electricity for the excess electricity which they produce and put into the power company's lines?

55. _______ ______ is energy from the hot core of the Earth.

56. If an ________ is located near a geothermal hot spot, the water may become so hot that hot water and steam shoot up from the ground.

57. When hot water and steam shoot up from an aquifer located near a geothermal hot spot, it is called a _______.

58. When the energy from hot water and steam is used to turn the blades of a turbine to generate electricity, this is called a ________ _______ ______.

59. _______ can be drilled near a geothermal hot spot to create a _________ ______ ______.

60. There is a large geothermal power plant north of ____ ________.

61. The __________ ________ between the Earth and moon causes the level of sea water to rise and fall. This action is known as ______.

62. If a dam is made in a river or canal close to the ocean, water can be trapped during ______ tides and released during _____ tides.

63. As we replace fossil fuels with alternative fuels, we can buy more time by _________ energy and building more ______ ______ ________.

64. In the average American family, the ______ is the single largest consumer of energy.

65. List 10 ways that we can conserve and use less energy in our cars.

66. Why is it better to use the air conditioner in our car than to roll down the windows?

67. In our homes, heating and cooling account for ____% of our energy use.

68. List 7 ways that we can save energy in our homes.

69. List 15 things which we can do to lower our energy usage at home.

70. Which is more efficient, incandescent light or fluorescent light?

71. What knowledge will help you save energy when you buy an appliance?

72. To save energy, we should _______ whenever possible.

73. It takes _____ energy to ________ than to manufacture from raw materials.

74. It takes ___% less energy to make steel from recycled scrap iron than from iron ore.

75. It takes ___% less energy to make aluminum cans from recycled aluminum cans than from ______.

76. It takes ____% less energy to make paper from recycled paper than from ______ ______.

77. It takes ___% less energy to make glass from recycled glass than from _______.

78. To make them more fuel efficient, cars can be designed to be more ___________.

79. Cars can be made more aerodynamic by using ______ and _____ _______.

80. The use of ________ or _______ to make engines reduces the _____ and ______ of the engine.

81. _____ _______ and ____ _______ uses gasoline more efficiently than does a ____________.

82. __________ ________ _________ which monitors engine efficiency and which adjusts fuel injectors can also make cars more fuel efficient.

83. Draw a picture of a car which is not aerodynamic.

84. Draw a picture of a car which is aerodynamic.

Energy II Notes