My project is a Rubber band propeller toy car. The car works with renewable potential and kinetic energy. The first stage is winding up the rubber band. This creates potential energy because the rubber band is being twisted. Twisting creates potential energy, waiting be released. The second stage is the release. When the propeller is released, the potential energized rubber band is now converting its energy into kinetic mechanical energy. This energy is spinning the propeller causing the fins to circulate the air behind and propelling the car forward. To improve the product, the item could have a more powerful propeller which would allow it to go faster. Also, it could use a stronger rubber band. Another improvement I could make is the direction the device goes. Currently, the way it’s being propelled is more like an airplane, the device should have the propeller pushing from the back to simulate a car. Sadly, my design was slightly flawed, the propeller doesn’t push the car in the direction I would like because a piece of wood holding the propeller in place is blocking the air flow. In case this project doesn’t last, I made sure to use recyclable products. The plastic can be reused for different resources such as a base or just for color. The wood can be used for smaller parts for other designs. Lastly, the metal axels and wheels can be returned to the science room. In conclusion, this car was a success and a failure at the same time. Overall, the project was a success in that the car moved forward. However, it did not move forward in the best, most efficient way.
Video of Final Prototype