What type of energy is described as energy in motion?

The energy described as energy in motion is called kinetic energy. This type of energy refers to the energy an object possesses due to its motion. When an object moves—whether it's rolling down a hill, flying through the air, or flowing in a river—it is exhibiting kinetic energy. The greater the mass of the object and the faster it is moving, the more kinetic energy it has.

In contrast, potential energy is stored energy based on an object's position or condition and does not involve motion, which distinguishes it clearly from kinetic energy. Elastic energy specifically refers to the potential energy stored in elastic materials when they are stretched or compressed, while nuclear energy is the energy that is released during nuclear reactions and is not directly related to the motion of objects. Kinetic energy is fundamental in various applications, including mechanics, sports, and even in understanding thermal energy related to the motion of particles.