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Weight and Pinewood Derby Cars. Alex Morrow Period 2. Table of Contents. Introduction/Background Research Process Results. Method of Investigation. Problem – I noticed some cars went faster than others and thought that weights could be the answer.

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Presentation Transcript
table of contents
Table of Contents
  • Introduction/Background
  • Research
  • Process
  • Results
method of investigation
Method of Investigation
  • Problem – I noticed some cars went faster than others and thought that weights could be the answer.
  • Variables – The variables I found were friction and the weight of a car.
  • Materials – I had two Pinewood Derby cars (one with weights, one without) and a 32 foot track.
  • Procedure – Both cars were raced and their speed was recorded.
introduction
Introduction
  • Last year, I helped my brother build his Pinewood Derby car into the shape of an arrow.
  • When choosing this science project, I was interested in why weight affects the speed of a car going down a track.
research
Research
  • I looked up a website (www.pinewoodderbycar.com), which explains that objects going downhill go faster with more weight because it increases the pull of gravity.
  • Also, less friction is better because friction slows objects down.
process
Process
  • To build my brother’s Pinewood Derby car, I used a scale saw, wood, nails, wheels, graphite, paint, shiner, a sander, a track, and the internet (to reference information).
conclusion
Conclusion
  • I found that the car with weight will always go faster than the other car.
  • This is of scientific worth because it can help us with technology and cars.
    • This can be applied to semi-trucks, which are heavier than most cars. Since they need to stop down hills, their braking systems should develop to add more friction to stop the greater weight.
bibliography
Bibliography
  • www.pinewoodderbycar.com

For Images:

  • https://www.derbymonkeygarage.com/images/products/4005.jpg
  • http://www.school-for-champions.com/science/images/friction-slide_kinetic.gif
  • http://www.clipartheaven.com/clipart/household/home_improvement/plywood_%26_saw.gif
acknowledgements
Acknowledgements
  • Thanks to:
    • The Neighborhood Cub Scouts
    • My Dad
    • My neighbor, who provided an unweighted car
    • My favorite older sister, who made a chart (!)