1. The problem statement, all variables and given/known data I doing a investigation coursework at the moment for physics A2. I am investigating how the viscosity of oil is affected by the temperature. I am attemping to prove the viscosity decreasing by showing that the damping constant decreases. I have attached a excel workbook with 2 sets of temperatures as a sample. 2. Relevant equations Is there an easier way to do this using my data? Is the LOGEST function giving me the damping constant? 3. The attempt at a solution I have bascially taken the maximum and min points from my SHM graph that i obtained from my datalogger. I took the position it started at as a zero line, to find the true displacements. THis gives me an exponential decay graph as expected. I have used the excel fuction called LOGEST to find the regression, however i am not sure where to go from here and wether it is even correct.