A rubber band car is a homemade car made with duct tape, cardboard, a skewer, cd’s, and a rubber band. The only rules are that we are only allowed use one rubber band and two cd’s. The key to making the car move is how you use the rubber band and how it connects to the skewer. We found out quickly that if you use a bigger stronger rubber band it has more ability to drive the car. The bigger rubber bands had more elastic potential energy because they were tighter and they were longer so they could launch the car faster. Kinetic energy is the force that is active when you do something.
Modifications
The first modification we put tape on the wheels. Putting tape on the wheels put more traction so the wheels wouldn't slide. This was our second car so with this modification our car went 5 tiles farther then the first car going 17 tiles.
Our second modification we did was out the long stick on the back of the car. What this did for our car is it made it so there is less friction as the back of the car isn't touching the ground. After we made this modification our car went 27 tiles.
In modification three instead of attaching the rubber band to the axel we attached it to the long shaft in the back of the car. By doing this the car has more velocity and will go farther while the elastic band spins more and is extended farther.
In modification three instead of attaching the rubber band to the axel we attached it to the long shaft in the back of the car. By doing this the car has more velocity and will go farther while the elastic band spins more and is extended farther.
