Question

What are the dependant and independent variables during a physics experiment using a rotational system to measure moments of inertia (adding weights to the rotating object and also to a hanging weight attached by a string). Newton's rotational second law being used here: Torque = (moment of inertia) * (angular acceleration)

Answer 1

dependent variables : variable whose value depend upon other variables

independent variables : variable whose value does not depend upon other variables

now in given case, added mass is independent variable because its value does not depend upon other and is constant but moment of inertia depend upon mass added so moment on inertia is dependent variable

in this experiment, independent variable(mass) is changed to know its effect on dependent variable(moment of inertia)

in newton second law, torque is given by experimenter so independent variable and angular acceleraton depend upon the torque applied so it is dependent variable