Viscous Drag, Viscosity and Stokes Law Fluids and fluid flow 2 - Flash card test 3.5 / 5 based on 4 ratings ? PhysicsFluidsASEdexcel Created by: Harry BarlowCreated on: 01-12-12 18:22 What is viscous drag? Drag caused by the friction created between a layer of fluid and the side of the container, which has an affect on successive layers of fluid. 1 of 8 Viscous drag is labelled as a single force acting in the opposite direction to the relative motion of the fluid past the solid. True or false? True! 2 of 8 Viscosity affects viscous drag. What is the relationship between viscosity and viscous drag? The more viscous a fluid is, the more viscous drag there is acting upon the fluid. 3 of 8 What is the symbol for (the coefficient of) viscosity? η, eta 4 of 8 What are the units for viscosity? (2 answers) PaS and Nsm-2 5 of 8 Convert the units of viscosity into bas units. kgm-1s-1 6 of 8 In general the viscosity of liquids increases with temperature, and the viscosity of gases decreases with temperature. Vrai ou Faux? Faux! 7 of 8 What is stokes law? F=6πrηv 8 of 8
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