The document describes an experiment to determine the acceleration due to gravity (g) by dropping an object through a light gate and measuring the time it takes to break the light beam. The object has two interrupt sections and the time for each section to pass through is recorded. These time measurements along with the width of the sections are used to calculate velocities and substitute into equations relating the velocities, distances, and acceleration due to gravity to solve for g. Multiple trials are conducted and the average value for g is determined.