The friction which exists between two layers of liquid in relative motion is called

Assessment: WAEC SSCE - Physics - 2005 (Objective) Subject: Physics

Question 1 Report

The friction which exists between two layers of liquid in relative motion is called
Answer Details
The friction which exists between two layers of liquid in relative motion is called viscosity. Viscosity is a measure of a fluid's resistance to flow. It is a property of the fluid itself and is determined by the internal friction between its molecules. The greater the internal friction, the greater the viscosity. Viscosity is what makes honey flow slowly and water flow quickly. In the context of the question, the friction between two layers of liquid is due to the difference in viscosity between the two layers. This phenomenon is commonly observed in fluids such as oil or molasses, where different layers move at different speeds due to the viscosity difference, a property called laminar flow.

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