Molecular dynamics is a computer simulation method used to study the physical movements of atoms and molecules over time. By applying the laws of classical mechanics, it allows researchers to observe how particles interact, move, and change states in various conditions. This technique is widely used in fields like chemistry, biology, and materials science. In molecular dynamics simulations, particles are represented as points in space, and their interactions are modeled using potential energy functions. This approach helps scientists understand complex processes, such as protein folding, crystal formation, and the behavior of liquids, providing insights that are difficult to obtain through experimental methods.