Final answer:
A moving object always possesses kinetic energy, the energy due to its motion. Potential energy, the energy stored by an object's position, can be converted into kinetic energy, adhering to the conservation of energy principle.
Step-by-step explanation:
A moving object always has its energy in the form of kinetic energy. This is the energy that an object possesses due to its motion. For example, a speeding bullet, a wrecking ball in motion, or a person walking all exhibit kinetic energy. The equation for kinetic energy is KE = ½mv², where 'm' stands for mass and 'v' for velocity. On the contrary, objects that are not in motion can have potential energy, which is stored energy based on an object's position or arrangement. For instance, a wrecking ball held high by a crane has potential energy.
When an object moves, its potential energy can be converted into kinetic energy and vice versa. However, it is important to note that energy never disappears; it merely changes forms. This is known as the conservation of energy, a fundamental concept in physics.