Each Equation Toolbox contains any and all basic equations that may be used during problem-solving. There are also examples of different models, including graphs, motion maps, and diagrams that students can reference as entry points when problem-solving. These have proven to be useful tools for students to use when completing homework and assessments.Equations & Models IncludedFundamental charge, net charge, and number of chargesElectrostatic force, test charge, source charge, and separation