Weight and Pinewood Derby Cars

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# Weight and Pinewood Derby Cars - PowerPoint PPT Presentation

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

### Weight and Pinewood Derby Cars

Alex Morrow

Period 2

• 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.
• 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
• 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
• 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
• 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
• 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
• 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
• Thanks to:
• The Neighborhood Cub Scouts