The potential energy of a system increases if work is done [2011]a)upo...
The potential energy of a system increase if work is done by the system against a conservative force.
−ΔU = Wconservative force
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Explanation:
When work is done on a system against a conservative force, the potential energy of the system increases.
- Conservative Force: A force is said to be conservative if the work done by the force on a particle moving from one point to another depends only on the initial and final positions of the particle and not on the path followed by the particle.
- Potential Energy: Potential energy is the energy possessed by a system due to the relative positions of its components. It is a scalar quantity and is measured in joules (J).
In the given options, only option D mentions work done by the system against a conservative force, which is the correct answer.
When a system does work against a conservative force, the energy is stored in the system as potential energy. This potential energy can be released later when the system returns to its original position or configuration.
For example, when a spring is compressed by an external force, the system stores potential energy. When the external force is removed, the spring returns to its original position and releases the stored potential energy.
Hence, the potential energy of a system increases when work is done by the system against a conservative force.
The potential energy of a system increases if work is done [2011]a)upo...