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Questions for Discussion: Galileo: His Experiments

  • Why do you think Galileo's ideas and experiments seemed surprising or difficult to believe at the time?
  • What is meant by a "thought experiment?"
  • How did Galileo use "thought experiments" to understand gravity?
  • Describe the motion of a pendulum, first using words, then adding sketches, and finally adding mathematics. From this experience, discuss why mathematics was so important to Galileo's discoveries.
  • Has this resource helped you understand how objects move? How?
  • Try these experiments yourself. How do your results compare with Galileo's?