Fundamental forces are the basic interactions that govern how particles and objects in the universe interact with each other. There are four known fundamental forces: Gravitational, Electromagnetic, Weak Nuclear, and Strong Nuclear. Each of these forces plays a crucial role in the structure and behavior of matter, from the smallest particles to the largest galaxies. These forces are responsible for everything from the falling of an apple due to Gravity to the binding of atomic nuclei through the Strong Nuclear Force. Understanding these forces helps scientists explain a wide range of phenomena, including the stability of atoms and the dynamics of celestial bodies.