👉 A fluid, specifically referring to a liquid that flows easily, is a substance with no fixed shape but takes the form of its container. Throughout fluid, this characteristic means that a liquid will move from areas of higher pressure to lower pressure, filling any space it occupies without forming distinct layers or maintaining a fixed volume. Examples of fluids include water, oil, and air, all of which exhibit this property as they adapt to the shape of their surroundings while maintaining a constant volume. This fluidity is due to the weak intermolecular forces between liquid molecules, allowing them to slide past one another without much resistance.
