Build a Self-Contained Wheeled Device for Physics Project: Tips and Ideas

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SUMMARY

The discussion focuses on building a self-contained wheeled device for a physics project, specifically designed to coast down a ramp and stop within a designated area. The project constraints include using standard music or computer CDs for wheels, a minimum of three wheels on one or more axles, and no external energy sources. Participants share ideas, including a design that utilizes threaded bolts as axles to create friction for braking. The formula 2πr is suggested for calculating distance traveled by the wheels.

PREREQUISITES
  • Understanding of basic physics principles related to motion and friction.
  • Familiarity with mechanical design concepts, particularly axle and wheel assembly.
  • Knowledge of geometric calculations, specifically using the formula for circumference.
  • Experience with hands-on construction using common materials like CDs and wood.
NEXT STEPS
  • Research effective braking mechanisms for wheeled devices.
  • Explore advanced friction materials and their applications in mechanical stops.
  • Learn about the principles of momentum and energy conservation in physics projects.
  • Investigate alternative designs for wheeled devices that comply with project constraints.
USEFUL FOR

This discussion is beneficial for students working on physics projects, educators seeking hands-on teaching methods, and hobbyists interested in mechanical design and engineering principles.

physicsman101
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Just was going to see if anyone had any ideas for this project that's due like wedsday.

Objective: Build a wheeled deivce that will coast down a ramp and brake to a stop in a prescribed area.

Permitted materials: Wheels must be made from standard music or computer CD's

The device must have at least three wheels which are attached to one or more axles. The wheels must rotate but the framework cannot rotate. The axels may or may not rotate. The wheels can be cut,drilled,glued together,ect. Only the wheels may touch the ramp and floor. No remote controls allowed the device must be self contained. No energy sources allowed(batteries,pre wound springs..ect.)

The car will roll down a 4ft long 16in high ramp then coast for 3ft on a level surface and after that it needs to stop quickly in order to get a good score...

If anyone has any ideas pls help lol...So far we have four wheels attached to threaded bolts as axles drilled into a piece of wood. The idea is as the wheels roll they will turn down the threads and hit the body creating friction that will hopefully stop the car, but we doubt it will have enough force to stop it. HELP!
 
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hint: use the formula 2.pi.r to calculate the distance and apply a mechanical stop.

Seratend.
 

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