- BASICS -
For the past couple weeks we have been working on elastic band cars trying to make them go farther each day. This cars consist of the following materials: cardboard, rubber bands (varying in length), thin wood sticks, duck tape, and discs.
How are they made?
The first part to making are cars was cutting 2in by 1.5in insert in the front in the cardboard. Then, we would take a thin wooden stick, and insert into the cardboard. From there we would rap tape around the sticks, so that the disc could stay on. Once we put the disc on we would take an elastic band, and tape it onto the back of the car. This was the first model of car, but we later went on make modifications.
How do they move?
To make the care move you would have to take the rubber band and wind it up around a stick. By rapping it more and more we are giving it more potential energy. Once the rubber band is released this potential energy turns into kenotic energy. This drives the car to move forward with the wheels turning.
Potential energy - the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors
Kenotic energy - energy that a body possesses by virtue of being in motion