What is the difference between external and internal forces and how do they impact the dynamics of a system?

External forces are factors that come from outside a system, such as environmental conditions or societal influences. Internal forces, on the other hand, originate within the system itself, like individual beliefs or organizational structures. These forces can impact the dynamics of a system by either driving change or maintaining stability. External forces may introduce new challenges or opportunities, while internal forces can shape how the system responds to these external factors. Overall, the interaction between external and internal forces can influence the behavior and evolution of a system.