What are the different types of forces and how do they affect motion?

In science, forces are classified into several types, including gravitational force, frictional force, applied force, normal force, tension force, and spring force. These forces can either cause objects to start moving, stop moving, or change direction. Gravitational force, for example, is responsible for the acceleration of a falling object, while frictional force opposes the motion of an object on a surface. Understanding these forces is crucial in comprehending how objects move and interact with each other, and in establishing the principles of physics.