Puzzler #3. The Pendulum

If, in a vacuum, you hang two objects of the same weight by two string of the same length they will swing in time with one another. If you increase the length of one string its weight will swing more slowly.  What will happen if instead you increased one weight?

Concepts involved:

  • gravity, weight, mass, speed (advanced concepts: acceleration due to gravity, galileo’s law of falling bodies)

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