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Question

Which of the following is the correct sequence of energy transformations in a hydroelectric power plant?

  1. Chemical Energy -> Electrical Energy -> Kinetic Energy
  2. Potential Energy -> Kinetic Energy -> Electrical Energy
  3. Kinetic Energy -> Potential Energy -> Chemical Energy
  4. Electrical Energy -> Kinetic Energy -> Potential Energy

Answer:

Option B: Potential Energy -> Kinetic Energy -> Electrical Energy

Detailed Solution:

The correct answer is “Potential Energy -> Kinetic Energy -> Electrical Energy”.

In a hydroelectric power plant, the potential energy of water stored at a height is converted into kinetic energy as it flows down. This kinetic energy then drives turbines, converting it into electrical energy.