Question:
In which case does the potential energy decrease?
In which case does the potential energy decrease?
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Potential energy decreases when an object moves towards a position of lower potential, like when an air bubble rises to the surface of water.
Updated On: Apr 22, 2026
- On compressing a spring
- On stretching a spring
- On moving a body against gravitational force
- On the rising of an air bubble in water
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The Correct Option is D
Solution and Explanation
Step 1: Understanding potential energy.
The potential energy of an object is the energy stored due to its position or configuration. - In the case of a spring, potential energy increases when stretched and decreases when compressed. - Moving a body against gravity increases its potential energy, as work is done to lift the body.
Step 2: Rising air bubble.
When an air bubble rises in water, the pressure at the depth decreases. As the bubble rises, its potential energy decreases due to the reduction in depth.
Step 3: Conclusion.
Therefore, the potential energy decreases when an air bubble rises in water.
The potential energy of an object is the energy stored due to its position or configuration. - In the case of a spring, potential energy increases when stretched and decreases when compressed. - Moving a body against gravity increases its potential energy, as work is done to lift the body.
Step 2: Rising air bubble.
When an air bubble rises in water, the pressure at the depth decreases. As the bubble rises, its potential energy decreases due to the reduction in depth.
Step 3: Conclusion.
Therefore, the potential energy decreases when an air bubble rises in water.
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