Renewable Energy Sources
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Questions and Answers

What is the primary function of the blades of wind mills in generating electricity?

  • To convert wind energy to mechanical energy
  • To convert wind energy to thermal energy
  • To store wind energy for later use
  • To rotate the turbines to generate electricity (correct)

    • Which country is credited with being the first to use wind for generation of electricity?

  • Denmark (correct)
  • India
  • China
  • United States

    • What is the primary benefit of wind energy as a source of electricity?

  • It is a non-renewable energy source
  • It is a cheap energy source
  • It is a renewable energy source
  • It is a clean and inexhaustible energy source (correct)

    • What is the role of wind in generating electricity?

    <p>To rotate turbines to generate electricity</p> Signup and view all the answers

    What is the historical significance of wind energy?

    <p>It has been used for centuries to propel ships</p> Signup and view all the answers

    What is the advantage of wind energy as a source of power?

    <p>It is a free and inexhaustible energy source</p> Signup and view all the answers

    What is the primary source of energy in an ecosystem that is responsible for the production of biomass?

    <p>Sunlight</p> Signup and view all the answers

    What is the characteristic of renewable energy resources that distinguishes them from non-renewable resources?

    <p>They can be replenished at a faster rate in nature</p> Signup and view all the answers

    Which of the following energy resources is not a fossil fuel?

    <p>Wind</p> Signup and view all the answers

    What is the process by which plants produce their own food using sunlight, water, and carbon dioxide?

    <p>Photosynthesis</p> Signup and view all the answers

    Which of the following energy resources is considered a major future source of energy?

    <p>Solar Energy</p> Signup and view all the answers

    What is the term for the estimated maximum capacity for energy production given all available resources on Earth?

    <p>World Energy Resources</p> Signup and view all the answers

    What is the approximate energy equivalent of one amu of U235?

    <p>Burning of 15 metric tons of coal</p> Signup and view all the answers

    What is the fundamental difference between nuclear fission and nuclear fusion?

    <p>Fission involves the splitting of heavy nuclei, while fusion involves the combination of light nuclei</p> Signup and view all the answers

    What is the unit of power mentioned in the text that is used to describe the energy ratings of electrical appliances?

    <p>Watts</p> Signup and view all the answers

    What is the approximate energy saved by recycling an aluminum can?

    <p>94%</p> Signup and view all the answers

    What is the relationship between the energy ratings of electrical appliances and their power consumption?

    <p>Energy rating is directly proportional to power consumption</p> Signup and view all the answers

    Why is recycling important for energy conservation?

    <p>Because it saves energy required to produce new materials</p> Signup and view all the answers

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