Power Station A : Potential energy → Kinetic energy → Mechanical

1.	Power Station A : Potential energy → Kinetic energy → Mechanical energy → Electrical energy.Power Station B : Chemical energy → Heat energy → Mechanical energy → Electrical energy.Power Station C : Nuclear energy → Heat energy → Mechanical energy → Electrical energy.a. Identify the above power stations A, B, and C based on the energy change taking place in them. b. Write down the merits and demerits of the power stations A, B, and C. c. Name other three energy sources that can be used instead of these.
Answer» a. A- Hydroelectric power station. B- Thermal power station. C- Nuclear power station. b.1. Merits: No pollution, Energy of waterfall is used. Demerits: Deforestation, Extinction of rare species of flora and fauna. 2. Merits: less area needed, danger possibility is less. Demerits: Pollution, High consumption of fossil fuels. 3. Merits: Energy production on large scale, Less area needed. Demerits: Pollution, Problems of radiation. C. (1) Solar energy. (2) Tidal energy. (3) Windmills.

Power Station A : Potential energy → Kinetic energy → Mechanical energy → Electrical energy.Power Station B : Chemical energy → Heat energy → Mechanical energy → Electrical energy.Power Station C : Nuclear energy → Heat energy → Mechanical energy → Electrical energy.a. Identify the above power stations A, B, and C based on the energy change taking place in them. b. Write down the merits and demerits of the power stations A, B, and C. c. Name other three energy sources that can be used instead of these.

Answer»

a. A- Hydroelectric power station.

B- Thermal power station.

C- Nuclear power station.

b.1. Merits: No pollution, Energy of waterfall is used.

Demerits: Deforestation, Extinction of rare species of flora and fauna.

2. Merits: less area needed, danger possibility is less.

Demerits: Pollution, High consumption of fossil fuels.

3. Merits: Energy production on large scale, Less area needed.

Demerits: Pollution, Problems of radiation.

C. (1) Solar energy.

(2) Tidal energy.

(3) Windmills.