Experiment #3: Investigating Coulomb's Law The Physics Classroom : Coulomb's Law Activity Click on the link above, and launch the interactive (resize as necessary ) and begin experimenting with the interface. Observe that the two charged objects can be dragged about the screen and centered on the gridlines of the background grid. Observe that the ruler can also be dragged about the screen. Observe how the sliders can also be dragged to change the value of the quantity of charge upon each charge . Finally , observe how the value of the electrostatic force between objects is displayed in the upper right of the simulation window Challenge #1: How is the electrostatic force , FZ, related to the magnitude of charge on the two objects, qq and 94 ? Keeping the same separation distance for all trials, systematically alter the charges of the objects and record the force. Be systematic and use purposeful changes such as doubling, tripling, and quadrupling of charge. Charge on 1 Charge on 2 Force Charge on 1 Charge on 2 Force 41 FE 91 92 FE Make a claim describing the relationship between FFand qq and qq. Support your claim with evidence (references to the data) and reasoning