👉 Fluid, in the context of physics and engineering, refers to a state of matter that exhibits properties of both liquids and gases. It is neither distinctly liquid nor gas but rather a mixture where particles are loosely bound, allowing for fluidity and the ability to flow. This state is characterized by low viscosity, meaning it flows easily, and a relatively low density compared to gases. Fluids can take the shape of their container while maintaining a constant volume, a property known as incompressibility. Examples of fluids include water, air, and oils. The behavior of fluids is governed by principles like Bernoulli's equation and Pascal's law, which describe how pressure changes in a fluid affect its motion and distribution.
