The Original ideas
The original idea for our hybrid energy car was for a rubber band to be wrapped around one axle and attached to the other through the body of the car that was a cardboard tube. That didn't work so next we tried to make a gravity powered car with a pole in the air that had a nail sticking out. A string with a weight was put over it and then attached to the axle, then the string was wound around the axle and when the weight was released it would pull the string wrapped around the axle and move the car. This also failed so we tried our final idea and we attached a pole going out in front of the car to this we attached a spring with a string attached to it. The string was wound around the axle and when released the axle spun and the car moved.
concepts
Kinetic Energy: Energy that an object posses just by being in motion.
Potential Energy: The energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.
Spring Constant: The force needed to to stretch or press a spring, divided by the distance that the spring gets longer or shorter.
Thermal energy:Thermal energy is the heat caused by friction
Friction: Friction is the resistance that one surface or object encounters when moving over another.
Acceleration: The rate at which an object in motion gains speed.
Wheel and Axle: A wheel and axle is a simple machine consisting of a rope that unwinds from a wheel onto a cylindrical shaft joined to the wheel to provide mechanical advantage and motion.
Potential Energy: The energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.
Spring Constant: The force needed to to stretch or press a spring, divided by the distance that the spring gets longer or shorter.
Thermal energy:Thermal energy is the heat caused by friction
Friction: Friction is the resistance that one surface or object encounters when moving over another.
Acceleration: The rate at which an object in motion gains speed.
Wheel and Axle: A wheel and axle is a simple machine consisting of a rope that unwinds from a wheel onto a cylindrical shaft joined to the wheel to provide mechanical advantage and motion.
Reflection
Throughout the duration of this project my group and i continued to change ideas non of which worked consistently. I think that is because the original idea called for a cardboard tube body and we continued to use that with the others that probably made our car dysfunctional and weak. Our group worked well together except for a few spats over ideas to use and we eventually used Jacob's spring idea. Some of the good things about this project was our pitch, Isabella really pulled through after her computer crashed and made a new presentation that went very well. We also learned about how the use of fossil fuel is detrimental to economy and the global health that was very eye opening for me.