What is the term for power or energy extended against a body in a given direction?

The correct term for power or energy extended against a body in a given direction is "Force." Force is defined in physics as any influence that can change the motion of an object. It is a vector quantity, which means it has both magnitude and direction. When a force acts upon a body, it can cause the body to accelerate, starting or stopping its movement or changing its direction.

In this context, force is crucial because it directly relates to how energy is exerted in a specific direction, enabling work to be performed on an object. Work itself is the result of a force moving an object over a distance, indicating how force contributes to energy transfer whenever it is applied to a body in motion. Understanding the nature of force and its directional application is fundamental in both physics and in practical scenarios, such as those encountered in NJROTC training.