Which energy is the result of an object's height and motion?

Mechanical energy is defined as the sum of potential energy and kinetic energy in an object, making it the appropriate choice for an object that possesses height (potential energy) and motion (kinetic energy).

When an object is at a certain height, it has gravitational potential energy, which is determined by its weight and height above the ground. At the same time, if the object is in motion, it has kinetic energy, which is determined by its mass and velocity. The combination of these two forms of energy gives rise to mechanical energy, which is the overall energy of the object due to its position and movement.

This understanding underscores the principle that mechanical energy encompasses both aspects of an object's state — height contributing to potential energy and movement contributing to kinetic energy.