Understanding Viscosity: Definition and Explanation | Learn From Experts

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Viscosity is a measure of a fluid's resistance to flow and movement, distinguishing it from friction, which applies to solids. While solids remain stationary when an object moves against them, fluids exhibit viscosity as they move along with the object. This property is crucial in understanding how liquids and gases behave under different conditions. For a deeper understanding, additional resources such as Wikipedia can provide more detailed explanations. Understanding viscosity is essential for various applications in science and engineering.
SOHAWONG
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In a question,I found a unit call 'viscosity',but i don't what it is
can anyone explain the definition,I have no idea of this completely,THX
 
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Welcome to PF!

Hi SOHAWONG! Welcome to PF! :wink:

Solids have friction.

Fluids (liquids and gases) have viscosity.

Both measure the resistance to movement.

The main difference between friction and viscosity is that when an object moves against a solid, the solid stays where it is, but when an object moves through a fluid, some of the fluid moves with the object.

See http://en.wikipedia.org/wiki/Viscosity" for details. :smile:
 
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