Question

Which energy of water is used to produce hydroelectricity?

• A. Kinetic energy
• B. Potential energy
• C. Both a and b
• D. None of the options

Answer 1

The correct option is C

Both a and b

Hydroelectricity:

1. Water's Potential and Kinetic energy are used to generate hydroelectricity.
2. It is typically constructed with dams that block a river in order to create a reservoir or collect water that is pumped there. When the dam is breached, the pressure behind it forces the water to downpipes, which leads to a turbine.
3. This causes the turbine to turn, which causes a generator to produce electricity.
4. When water is stored at a height, it contains potential energy.
5. When water is allowed to fall from a height, its potential energy is converted into kinetic energy.
6. The energy of the flowing water is thus converted into mechanical energy by a hydraulic turbine. This mechanical energy is converted into electricity by a hydroelectric generator.

Therefore, option C is the correct choice.