*Videos can be accessed using links above
How it’s (supposed) to work:
The toy car is to be powered by the transformation of potential energy, stored in the tension of the elastic bands into kinetic energy, which will power the propeller to spin and generate force. At least its supposed to work that way. The amount of kinetic energy in my model was too insignificant to power the car to any meaningful distance as the terminal velocity of the propeller couldn’t propel the total weight of the car.
My design happens to be aesthetically pleasing which I believe is quintessential to any toy, as seen on the wings and arrow to enhance the view. Furthermore, and more importantly, my design was able to successfully transfer elastic potential energy into propeller kinetic energy. As evidenced by the fact that the propeller turns. Furthermore, my toy is sustainable and isn’t contingent on variable cost materials to run i.e. batteries.
Failures, things to improve on!!!:
My biggest failure was that the kinetic energy I was able to transfer through the potential energy stored in the elastic tension was insignificant in powering the car to long distances. If I had more time, I’d fix this by attaching the axel of the propeller to the axels of the wheels which would allow for more efficient use of kinetic energy because wind isn’t as powerful as the amount of energy directly transferred through gears.
Another thing I needed to improve on is the precision of the model. As seen in the holes drilled, they’re slightly too big for the axels which make it wobbly and go left and right while in motion. I believe this problem can be fixed in the future as I will be more familiarised with the various tools in the lab such as the electric drills.
Impact on the Client:
The ideal client would be smaller children, ages 3-7 who have an interest in playing with cars. The toy would have an impact of enjoyment onto them as that’s what toys are really for. Furthermore, the toy, being very transparent, will have a direct impact in deepening the understanding of these young children by showing them the entire process of how the propeller is powered.
Impact on the environment:
This product is an eco-friendly one. It is made from recycled materials like used plastic bottles which would’ve otherwise been wasted and thrown away. It is also powered by wind energy which is environmentally friendly because it is sustainable and can be reused.
All in all, I believe my project had many successes and failures. It also deepened my knowledge and experience with kinetic and potential energy as I got to used them with my very own hands in designing a product that would actually apply to the world. Furthermore, not only did I build a final product, I also familiarised myself with the workshop lab which I believe will be beneficial in future projects allowing me to be more successful in knowing my tool and material choice.