Challenge #2: How is the electrostatic force, FF, related to the separation distance , mr, between the two charges? Keeping the magnitude of charge on both objects constant, conduct a systematic study to collect data relating separation distance to force . The separation distance is defined as the distance between the centers of the two objects ; the best strategy involves centering the objects on a gridline and using distances that are a whole number of squares. Separation Force Separation Force Distance r FE Distance r FE