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Viscosity

• Viscosity has to do with flow dynamics.
  
  
• Viscosity has the units Pa.s or pressure multiplied by time.
  
  
• Viscosity is a property of a fluid, not just a liquid.
  
  That is it also includes gases.
  
  
• The easiest way of comprehending viscosity of a fluid is to consider the shear stresses that the fluid experiences as it flows between two parallel plates.
  
  
• The greater the stresses the greater the viscosity.
  
  
• The greater the viscosity the greater the resistance to flow.
  
  
• That is honey has a greater viscosity then water.