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Speeding Up

Experiment #13 from Exploring Physical Science

Education Level
Middle School


You may have noticed that an object rolling down a hill starts out slowly and then speeds up. In this activity, you will measure the maximum speed of a cart or toy car as it rolls down a ramp from different starting positions. You will use a Motion Detector to measure the speed of the car.


  • Use a Motion Detector to measure speed.
  • Record data.
  • Graph results.

Sensors and Equipment

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

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This experiment is #13 of Exploring Physical Science. 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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