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Action / Reaction HTML5

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Summary

The electrostatic force obeys the action / reaction principle (Newton's third law). So does the force of gravity

Since the 1700s, scientists noticed strong similarities between gravitation and electrostatic forces, keeping in mind that the gravitational force is always attractive, while the electric force is both attractive and repulsive.

Drag the red charge or the satellite.

Learning goals

  • To display the properties of electric force.
  • Reveal the analogy between the gravitational force and the electric force.
  • To illustrate Newton's third law (action-reaction)