MCQ Detailed View

The energy stored in a dam is called potential energy. This energy is stored because of the height of the water collected behind the dam. The higher the water is, the more potential energy it has.

Potential energy means “stored energy.” In a dam, water is kept at a high level using walls or barriers. This stored water has energy due to its position. It does not move until the gates are opened. When the water is released, this stored energy turns into kinetic energy (moving energy). Then, it flows down and spins turbines. These turbines are connected to generators, which then produce electrical energy.

So, the energy in a dam moves through three forms:
1. **Potential energy** (water stored at height)
2. **Kinetic energy** (water moving)
3. **Electrical energy** (power we use in homes)

But the correct answer to the question “What type of energy is *stored* in a dam?” is only **Potential energy**, because the water is not moving until we let it out.

This method of using stored water to make electricity is called hydroelectric power. It is a clean and renewable source of energy that many countries use to power homes, factories, and cities.

In simple words, a dam works like a battery filled with water. It stores energy in the form of potential energy and gives us electricity when needed.