Free Fall Clock and Reaction Time!

This Free Fall Clock and Reaction Time! lesson plan also includes:

Can you use gravity to create a clock? Pupils explore reaction time, acceleration, and gravity in a timely lesson plan. They test how quickly each can catch a dropped ruler, find average reaction times, and calculate percent error.

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CCSS: Adaptable
Instructional Ideas

  • Test with and without a countdown to dropping the ruler
  • Discuss the research showing that some video games increase reaction time
Classroom Considerations

  • Relies on prior knowledge of distance, velocity, acceleration, metric conversions, and standard formulas for velocity and acceleration

  • Sets up pupils with the prior knowledge needed to understand straight line motion acceleration
  • Uses readily available materials

  • None