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by Teacher MAS0 views·Updated Aug 27, 2020
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  1. Hello, my wonderful students.
  2. Today, we're going to continue reviewing Lesson one about energy
  3. converge in as we knew that the objective off the
  4. lesson is a follow.
  5. Describe how natural re sources are converted to energy and
  6. fuel. We will be talking about the vocabulary word, fuel,
  7. combustion, turbine generator, battery device and primary.
  8. Let's get started.
  9. When I talk about energy transformation, we knew that our
  10. important rule is that energy can neither be created nor
  11. destroyed. So when I talk about transformation, we always need
  12. to remember this phrase that it can neither be created
  13. nor destroyed.
  14. So as it tells you over here, they are the
  15. specific types of energy that can be transformed into a
  16. different kind of energy.
  17. As followed.
  18. You have electrical, you can transform it to heat and
  19. thermal energy.
  20. Electrical light and heat.
  21. Energy, electrical light, heat and sound energy and electrical can
  22. be transformed into movement, heat and sound energy changing forms
  23. off energy.
  24. As you can see in the following image, you can
  25. see how you can change different types of energy.
  26. As you can see in the first picture, which you
  27. have a car, you have a tree you have hammering
  28. a nail.
  29. You have a nuclear energy reaction you have over here.
  30. Electric mixer.
  31. And you haven't Now is how they are transformed as
  32. you can.
  33. Look at this picture.
  34. What do you think this picture close to?
  35. Fantastic job.
  36. It is a bastard.
  37. When I talk about about a battery, a battery stores
  38. chemical energy and can convert that energy into electrical energy.
  39. Like whenever you have any remote remote control car where
  40. you can play as a toy, what do you usually
  41. do in order for it to work, you need to
  42. put the battery, which is which shows you an example
  43. that is over here.
  44. And then the car itself will start working.
  45. So, as always, remember, a battery stories, chemical energy and
  46. can convert that energy into electrical energy.
  47. We took this before, but what do you think this
  48. process is?
  49. Take a minute to think about the process is fantastic.
  50. Job, it included explains what happens during each step off
  51. electrical power generation.
  52. So there's an electrical power generation.
  53. It shows you how in details it will work as
  54. a process.
  55. It shows you have the coal it feeds into a
  56. boiler where the coal falls down over here, it burns
  57. a coil into a boiler.
  58. Heating water at high temperature steam passes through tubes which
  59. you can see over here.
  60. And then they spend out producing what we call as
  61. electricity, chemical energy.
  62. What do you think is chemical energy, fantastic job, chemical
  63. energies and energy that is available for release from chemical
  64. reactions. So when we talk about chemical energy, we always
  65. talk about the specific type of energy that is available
  66. for release from chemical reactions.
  67. And as we said in our previous lesson, we said
  68. that we take our main primary source of energy for
  69. all. Living things is from the sun.
  70. So the primary source of energy for all living things
  71. are from the sun itself.
  72. Look at the next picture.
  73. What do you see in this picture?
  74. Fantastic job.
  75. This is something that we call as a ZX.
  76. You guys all know that we use it for, for
  77. example, for filling up our cars in order for it
  78. to work.
  79. This is a fuel.
  80. It is a material that releases energy as heat and
  81. then a ZX, he twin it birds, common fuels that
  82. we have includes coal, natural gas, petroleum and would.
  83. So this is what we call as fuel, which is
  84. a material that releases energy as heat when it burns.
  85. So as we can see, we usually see them whenever
  86. we need to fill up our cars with fuel or
  87. or what?
  88. Or in order for the energy to work in the
  89. car itself.
  90. Over here, we said energy convergent how energy can be
  91. converted from one specific type to another different type.
  92. And over here they give you examples of how energy
  93. can be converted.
  94. For example, as you see the food that is up,
  95. the food is chemical energy.
  96. What does it do for us as human meat being
  97. It gives us the energy for us to work.
  98. And over here is a transformation, the energy transformation from
  99. one type to another type.
  100. You have the chemical energy.
  101. It can be transferred into kinetic energy.
  102. Light energy can be transformed into chemical energy.
  103. Thank you for listening to my lesson.
  104. And I hope that you liked it.