what does an object gain potential energy
Answers
Answer:
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Explanation:
Answer:
A potential by itself does not add any energy to a compatible object entering the field. I use the word ‘compatible’ because the introduced object needs to be able to be affected by the field that it is entering. For example, a proton has an electric field and will be affected by the electric field of another electric charge. On the other hand, a neutron will neither be attracted nor repelled by an electric field.
Within a field, it is the potential difference (the gap between two different potentials) that stores energy per unit charge in the case of electric fields or per unit mass in the case of gravitational fields. The field already contains energy in it due to the source of the field.
Once a massive object traverses two points at different potentials within a gravitational field, then energy will be taken from the field to cause the object to come to the lower potential. For opposite electric charges, the situation is similar.
The reverse happens for like charges but the same principles are in operation. In the case of repulsion, it is the field that spends energy to slow the approaching charge and then spends energy to repel it to a far off point where the effect of the field is no longer felt. The energy spent comes from the need to traverse the expanse of potentials within the field.