Potential Energy Explained

Potential energy is the energy stored within an object due to its position, arrangement, or state. It's often referred to as "stored energy" that has the potential to do work.

Analyzing the Options

Let's look at each option to see why one is an example of potential energy:

• 1. Water in an overhead work: When water is held at a height, like in an overhead tank or a dam, it possesses gravitational potential energy. This is because gravity is acting on the water, and if released, its position allows it to move and do work (e.g., flow downwards). The higher the water, the more potential energy it has. This energy is stored due to its position in a gravitational field.
• 2. Blowing wind: Wind is simply moving air. The energy possessed by a moving object is called kinetic energy. Therefore, blowing wind is an example of kinetic energy.
• 3. Flowing water: Similar to wind, flowing water is water in motion. This movement gives it kinetic energy. Think of a river flowing downstream; the energy comes from its motion.
• 4. Rushing steam: Rushing steam implies steam that is moving rapidly. Like the wind and flowing water, this motion means it possesses kinetic energy.

Conclusion

Based on the definitions, water held at a height ("Water in an overhead work") is the only option that clearly represents potential energy due to its position.