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The relationship between the firmness of a car's suspension system and the car's speed around bends Featured science projectScience project video

Observation

Record your findings in the following table and find the average time taken to complete the courses: 

  Time taken to complete course (Full Speed) in seconds
Spring stiffness Straight course Clockwise Course Counter-Clockwise Course
Stiffest – Trial 1 4.03 10.07 10.51
Stiffest – Trial 2 4.04 9.93 11.19
Stiffest – Trial 3 4.1 9.93 10.83
Average 4.06 9.98 10.84
Medium – Trial 1 4.28 16.73 15.27
Medium – Trial 2 4.19 17.12 16.81
Medium – Trial 3 4.82 16.92 15.87
Average 4.43 16.92 15.98
Softest – Trial 1 4.91 10.81 13.62
Softest – Trial 2 5.71 10.16 13.93
Softest – Trial 3 5.35 10.62 14.01
Average 5.32 10.53 13.85

*Create a similar table for the Low Speed records

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Complexity level:
4
Project cost ($):
40
Time required:
2 hours to prepare the car for experiment, 1 hour to run the experiment.
Material availability:
Remote control cars and springs are available from recreational/hobby/toy shops. Some cars run on fuel while others run on batteries.
Safety concerns:

Ensure that the cars are run in a safe location. Never do so on an actual road.