In the previous experiment, you learned that lightweight objects falling in air quickly reach terminal velocity and what is the force law for air drag as a function of velocity. For large Reynolds numbers Re 10, like in the case of coffee filters falling in air, the drag force or inertial drag and also the terminal velocity of falling objects is independent of viscosity. In this lab you will test experimentally the force law for drag force at viscous limit Re 1 and the effect of viscosity on the terminal velocity of objects falling in liquids of different viscosity. Objectives Learn the scaling of terminal velocity with viscosity. Test the validity of Stokes' law over a range of Reynolds numbers from approximately 0.003 to 1000