Educação Superior::Ciências Exatas e da Terra::FísicaEnsino Médio::FísicaBasic notions of electric force between chargesSimulation which allows the student to observe the electrostatic interaction between two equal electric charges. The vectors represented are electrostatic force, tension and weight. The numeric values of these forces, and the value of the angle and average value r which separate the charges are also shown. The value of masses and charge may be changed