What is a fluid in physics?

fluid, any liquid or gas or generally any material that cannot sustain a tangential, or shearing, force when at rest and that undergoes a continuous change in shape when subjected to such a stress.

What are the three principles of fluids?

The basic fluid mechanics principles are the continuity equation (i.e. conservation of mass), the momentum principle (or conservation of momentum) and the energy equation.

What is a fluid class 11 physics?

Fluids are the sustances which can flow e.g., liquids and gases. It does not possess definite shape. • When an object is submerged in a liquid at rest, the fluid exerts a force on its surface normally. It is called thrust of the liquid.

What are the 5 basic properties of fluid?

Ans: Thermodynamic properties of fluids are density, temperature, internal energy, pressure, specific volume and specific weight.

What are types of fluid?

Fluids are classified into four types depending on its flow, they are:

  • Steady or unsteady.
  • Compressible or incompressible.
  • Viscous or non-viscous.
  • Rotational or irrotational.

What is Newton’s law of fluid?

Newton’s law applied to the fluid control volume states that the sum of all forces that act upon the control volume is equal to the net rate of mechanical momentum relative to the control volume (Figs.

What is the SI unit of viscosity?

The unit of viscosity is newton-second per square metre, which is usually expressed as pascal-second in SI units.

What is Pascal’s law in physics?

Pascal’s law says that pressure applied to an enclosed fluid will be transmitted without a change in magnitude to every point of the fluid and to the walls of the container. The pressure at any point in the fluid is equal in all directions.

What are the types of fluid?

What are the 8 properties of fluid?

Properties of fluids

  • Density.
  • Viscosity.
  • Temperature.
  • Pressure.
  • Specific Volume.
  • Specific Weight.
  • Specific Gravity.
  • Surface Tension.