Task: Story Composition
Input (English): Background Paragraph: Lifting an object in a gravitational field requires work and increases the object's potential energy. A similar situation occurs when you move two charged objects relative to each other. We already know that each object has an electric field surrounding it, which effects the other charge. If the two charged objects have the same charge, they repel each other. Moving these two objects closer to each other requires working against the repulsive force, which increases the potential energy of the system. Conversely, moving two like charges apart will decrease the potential energy. If the objects attract each other, the opposite situtations occur if you pull them apart, you do work against the force, which increases the potential energy of the system, but bringing attractive charges closer together decreases the potential energy.
Output (English): A small boy is playing with some magnets. He takes the north ends of 2 magnets and tries to push them together, he gets them close and lets one of watching it bounce backwards. He then takes two opposite poles and slowly pushes them together.