What type of energy is stored due to the position or shape of an object?

Potential energy is the type of energy that is stored due to the position or shape of an object. It arises from the object's position in a force field, such as gravitational or elastic, or from its structure. For instance, a rock perched at the edge of a cliff has potential energy due to its elevated position, as gravity can pull it down. Similarly, a compressed spring holds potential energy because of its shape, which has been altered from its resting state.

Understanding potential energy is fundamental in physics because it plays a crucial role in various processes, such as mechanical systems, energy conservation, and transformations. It contrasts with kinetic energy, which is the energy of motion, and thermal energy, which pertains to the heat and movement of particles in a substance. Nuclear energy, on the other hand, is associated with the energy stored in atomic nuclei. Thus, potential energy is specifically identified with stored energy related to position or shape, making it the correct answer to the question.