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Thanks brother for the explanation!viscosity relates somewhat to the fluidity of a fluid (in our case, liquids).. it sort of describes a fluids resistance to flow
for example
Oil is a more viscous fluid (compared to water), it flows slowly and when you take Oil in a bottle, put an object on its surface and it will move down quite slowly.. that force that sort of resists the force of gravity pulling the object down is the viscous force.
On the other hand water flows more easily and has a smaller viscous force.
imagine swimming, you would find it easier to swim in water than in Oil, since Oil would put up a lot of resistance (viscous force) against your movement
In most cases, you may assume that a denser liquid will be more viscous and hence have a higher viscous force