Objectives: Students learn the concepts of conservation of charge and Coulomb's law. Students apply Coulomb's law especially in equilibrium situations for systems.
Lab 19: PhET Simulations
Students use several PhET simulations to investigate electric forces and the transfer of charge.
Lab 20: Coulomb's law
Students apply Coulombs law to a system of two repelling pith balls to determine the approximate number of electrons on each pith ball.