Agora: Relative Motion Experiment
  • Physics → Motion → Relative Motion

Hypathia incorrectly guesses how a sack will fall when it is dropped on a moving boat. She observes that the sack behaves as if the boat was stationary. Hypathia believes the same principle can be applied to the Earth: it is moving around the Sun without us realizing it.

Public Discussion Questions

  1. If you toss an object straight up in a moving car, why doesn't it fly to the back of the car?

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This clip is associated with the following standards:
  • Next Generation Science Standards
    Develop and use a model to describe the role of gravity in the motions within galaxies and the solar...

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Public Pause Prompts

Start Time Prompt Timing Length
00:48 Why do you think the sack hit directly below where it was dropped and not where Hypathia had pred... Timed 01:00


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