Open another Phet simulation Charges and Field (https://phet.colorado.edu/en/simulation/charges-and-fields). In this simulation, a little different model is used: the little yellow "E field sensors" are like the hockey puck but they are on a high friction surface, so they stay in place allowing for measurements. Collect data by turning on Show Numbers & Tape Measure. 1. Determine the relationship between distance and the strength of the electric field around a charged body. Use Excel to document your data, graph and determine the equation for the relationship. The electric field strength E is inversely proportional to the square of the distance d from the charge, expressed as E = kd 2. 2. Determine the relationship between amount of charge and the strength of the electric field around a charged body. Use Excel to document your data, graph, and determine the equation for the relationship. 3. Write an explanation of how you can predict the motion of a charged hockey puck that is moved by other charged pucks. Explain using examples and drawings that include: a. How to use free body diagrams and vector addition. b. How negative and positive charges compare and contrast. 4. Explore the relationship between energy and fields