Energy Change Proof of Efficacy
Design: We attempted to make a car using a chemical reaction, a Stirling engine, and a rubber band. Then we attempted to make a fan using the same materials. Neither of these worked due to the rubber band not sticking well enough to the wheel of the engine.
Energy transfer: Chemical energy----->Heat energy----->Kinetic energy. Chemical energy is stored in bonds of compounds waiting to be released in their reaction. Heat energy is the result of movement between atoms, molecules or ions. Kinetic energy is the energy used in motion of parts.
Modifications: One modification we made was using a larger rubber band. The surface area for the original rubber band was not wide enough to properly grip the axle of the car. Another modification we made was switching from rubbing alcohol to heat the engine to 30g of calcium chloride in 30ml of water. This generated more heat energy and increased the temperature 68.2*C.
Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases
Chemical energy is energy stored in the bonds of chemical compounds, like atoms and molecules.
129708 J
The car/fan can be powered using the heat from your own body. It is basically an infinate energy source.
REFLECTION
This project was a great learning experience for me. I learned a lot about what goes into making a stirling engine run properly. I gathered lots of new information about different types of energy and transfers throughout this project. There were things that I performed well on and some that I can improve on. One of the things I feel that I did well was collaborating. I was always open to new ideas. I always encouraged people to present new ideas. Another thing I feel that I excelled at was character. I felt that I provided insight when my group was struggling. There were also some things that I felt that I could improve on. One of these things was critical thinking. Although I may have been a supporter of others ideas, I feel I could have done a better job of coming up with my own ideas to help accelerate the process of building our machine. Another thing I feel that I could have used improvement on was staying on task. At some points during the project I may have been off topic slightly. This is something I will make sure to improve on in the projects to come.
Design: We attempted to make a car using a chemical reaction, a Stirling engine, and a rubber band. Then we attempted to make a fan using the same materials. Neither of these worked due to the rubber band not sticking well enough to the wheel of the engine.
Energy transfer: Chemical energy----->Heat energy----->Kinetic energy. Chemical energy is stored in bonds of compounds waiting to be released in their reaction. Heat energy is the result of movement between atoms, molecules or ions. Kinetic energy is the energy used in motion of parts.
Modifications: One modification we made was using a larger rubber band. The surface area for the original rubber band was not wide enough to properly grip the axle of the car. Another modification we made was switching from rubbing alcohol to heat the engine to 30g of calcium chloride in 30ml of water. This generated more heat energy and increased the temperature 68.2*C.
Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases
Chemical energy is energy stored in the bonds of chemical compounds, like atoms and molecules.
129708 J
The car/fan can be powered using the heat from your own body. It is basically an infinate energy source.
REFLECTION
This project was a great learning experience for me. I learned a lot about what goes into making a stirling engine run properly. I gathered lots of new information about different types of energy and transfers throughout this project. There were things that I performed well on and some that I can improve on. One of the things I feel that I did well was collaborating. I was always open to new ideas. I always encouraged people to present new ideas. Another thing I feel that I excelled at was character. I felt that I provided insight when my group was struggling. There were also some things that I felt that I could improve on. One of these things was critical thinking. Although I may have been a supporter of others ideas, I feel I could have done a better job of coming up with my own ideas to help accelerate the process of building our machine. Another thing I feel that I could have used improvement on was staying on task. At some points during the project I may have been off topic slightly. This is something I will make sure to improve on in the projects to come.