👉 A true fluid is a substance that can flow and take the shape of its container, exhibiting viscosity but not solidity. Unlike liquids, which have a fixed volume but take the shape of their container, true fluids can flow without breaking into distinct parts. Examples include water, oil, and mercury. These substances can move and change shape in response to external forces, such as gravity or pressure, but they maintain a continuous, cohesive flow. This unique property distinguishes true fluids from other states of matter like solids and gases, where they do not flow or change shape in the same manner.
