Falling Ball Viscometer
Objective: Purpose of the Falling Ball Viscometer experiment was to measure the viscosity of glycerin or glycerol by using falling ball viscometer technique.
When a body falls in a liquid under the force of gravity, it accelerates until weight of the body is balanced by the buoyancy force and drag force. Terminal velocity is gained by the body at this point. Viscosity of the liquid can be evaluated by measuring this terminal velocity of the body in the liquid. In this experiment a steel sphere was allowed to fall in glycerol and dynamic viscosity of glycerol was measured by using ...