Physics
Grade-10
Easy

Question

When the water flowing in a river is stored in a high-rise dam and
allowed to fall from the top of the dam. The water rushes down with a great force, which can
be utilised to drive large water turbines. These turbines are connected with electric generators,
which generate electric current. The electricity generated in this process is termed as -----

  1. Wind energy
  2. Solar energy
  3. Thermal energy
  4. Hydro electricity

hintHint:

Hydropower, or hydroelectric power, is a renewable source of energy that generates power by using a dam or diversion structure to alter the natural flow of a river or other body of water.

The correct answer is: Hydro electricity


    • In a hydropower plant, the water stored in the dam has potential energy. When the water flows from higher altitude, the potential energy is converted into kinetic energy. When the flowing water rotates the turbine, the kinetic energy is converted into mechanical energy.
    • And the mechanical energy is converted to electrical energy
    • And this energy is termed as Hydro Electricity

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