After this lesson, you should be able to:

• State Coulomb’s law and express it mathematically
• Use Coulomb’s law to find the force exerted on a charge by one or more charges in one (1D) and two dimensions (2D)
• Understand the concept of superposition of forces
• Draw free-body diagrams showing the forces acting on a charge due to other charges
• Link Coulomb’s law to Newton’s third law of motion
• Compare Coulomb’s law to Newton’s law of universal gravitation