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Angular Velocity

Experiment #11 from Vernier Video Analysis: Motion and Sports

Education Level
High School


It is likely that you have learned to describe linear and parabolic motion using equations that involve x and y directions. When objects move in circles, it can be convenient to use a different coordinate system. Whether an extended object is rotating or a point particle is moving in a circle, we can describe the circular aspect of the motion with equations similar to those used for linear motion, but employing polar coordinates.


In this experiment, you will

  • Use video analysis techniques to obtain angular position, angular velocity, and time data for a video of a turntable spinning.
  • Examine graphs and equations of the motion for rotational motion.

Sensors and Equipment

This experiment features the following sensors and equipment. Additional equipment may be required.

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This experiment is #11 of Vernier Video Analysis: Motion and Sports. The experiment in the book includes student instructions as well as instructor information for set up, helpful hints, and sample graphs and data.

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