Final answer:
Dynamics is the study of forces and their impact on the motion of objects and systems, as opposed to kinematics, which describes motion without considering forces.
Step-by-step explanation:
The study of objects in motion with much concern for the forces that produced the motion is dynamics. Dynamics is the area of physics that is concerned with the forces that cause the motion of objects and systems. When we examine the foundation of dynamics, we refer to Isaac Newton's laws of motion, which illustrate the simple, yet universal principles by which nature functions. These principles apply not only to objects on Earth but also to those in space, demonstrating their wide applicability. In contrast, kinematics is the study of how objects move—their velocity and their acceleration—without regard for the forces that cause the motion.
Defining dynamics further, we can say that dynamics is the study of forces and their effect on motion. This includes both the internal and external influences that can change an object's state of motion. It is a subject that provides insight into the 'why' behind an object's movement, as opposed to kinematics which describes the 'what' of the movement as in motion along a straight line or motion along curved paths.