👉 A fluid, often a liquid or gas, moves due to the application of external forces or pressure gradients, driven by the principle of conservation of momentum. When a force is applied to a fluid, it causes the fluid particles to accelerate in the direction of the force, leading to bulk motion. This motion is not due to individual particle movement but rather to the collective behavior of the fluid as a whole. In a more complex scenario, fluids can also exhibit viscosity, which is a measure of their resistance to flow, causing them to resist changes in shape and internal motion. This resistance leads to phenomena such as laminar flow (smooth, orderly movement) or turbulent flow (chaotic, irregular movement), depending on the fluid's velocity and the surrounding conditions.
