The branch of mechanics dealing with the properties of fluids in various states and with their reaction to forces acting upon them.

• Statics
• Fluid Mechanics
• Fluid Dynamics
• Hydraulics

It is hard to compress and it changes its shape according to the shape of its container with an upper free surface.

• Liquid
• Gas
• Solid
• Plasma

It is easy to compress and expands to fill the container.

• Liquid
• Gas
• Solid
• Plasma

Mass per unit volume of a material.

• Specific Gravity
• Unit Weight
• Mass
• Density

Weight per unit volume.

• Specific Gravity
• Specific Weight
• Mass
• Density

Reciprocal of density.

• Specific Gravity
• Specific Weight
• Specific Volume
• Density

Ratio of the density of a material to the density of water at 4 ℃.

• Specific Gravity
• Specific Weight
• Specific Volume
• Density

Resistance of fluid between two layers of object sliding over each other.

• Kenimatic Viscosity
• Specific Weight
• Dynamic Viscosity
• Density

Also called “momentum diffusivity”, is the ratio of viscosity to the density of the fluid.

• Kenimatic Viscosity
• Specific Weight
• Dynamic Viscosity
• Density

The tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.

• Kenimatic Viscosity
• Tension Force
• Dynamic Viscosity
• Surface Tension