Physics-based simulation is a method used in computer graphics and engineering to create realistic models of physical systems. By applying the laws of physics, these simulations can accurately represent how objects move, collide, and interact in a virtual environment. This approach is widely used in video games, movies, and scientific research to visualize complex phenomena. These simulations rely on mathematical equations to mimic real-world behaviors, such as gravity, friction, and fluid dynamics. Tools like Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD) are commonly employed to analyze structures and fluid flows, helping engineers design safer and more efficient products.