Mechanics is a branch of physics that studies the behavior of objects in motion and at rest. It focuses on the forces acting on these objects and the resulting movements. Mechanics can be divided into two main categories: classical mechanics, which deals with everyday objects, and quantum mechanics, which examines the behavior of particles at the atomic and subatomic levels. In classical mechanics, key concepts include force, mass, and acceleration, as described by Newton's laws of motion. These laws help explain how objects interact and move in response to various forces. Understanding mechanics is essential for fields such as engineering, astronomy, and robotics.