* Viscosity refers to a fluid's resistance to flow. Think of honey versus water. Honey is highly viscous, resisting flow, while water is less viscous and flows easily.
* Non-viscous would imply a fluid with zero viscosity. In reality, all fluids have some viscosity, even if it's extremely low.
So, instead of "non-viscous," we use terms like:
* Low viscosity: This describes a fluid that flows easily, like water.
* Ideal fluid: This is a theoretical concept of a fluid with zero viscosity. It's used in some physics calculations, but it doesn't exist in the real world.
In summary: While "non-viscous" is technically correct, it's not a practical term. Use "low viscosity" or "ideal fluid" instead depending on your context.