Embedded Files
Evidence of Work
Evidence of Work
The task that was given to us was to build a vehicle to safely transport two passengers (rolls of pennies), with a total mass of 250 grams at a length of 5 meters. We were prohibited from using chemical or nuclear energy. Our car had to speedily and cost-effectively transport our passengers. To begin our project we started by using a light piece of wood as our chassis and we attached wooden skewers to be our axles, held up by our metal "axle holders". Our method of propulsion was a wound-up rubber band. We quickly realized that our method of attaching our rubber band, with a wedge, caused way too much friction. To fix this, we ditched our wedge idea and decided to drill a screw into our chassis for our rubber band to attach to. We then cut our metal pipe in half to have our rubber band going in between the two parts instead of next to the wheels, reducing friction greatly. This setup allowed for our rubber band-powered car to travel exactly 5 meters in just under 5 seconds.
Content
Content
- Spring Potential Energy: This is the potential energy of a spring or elastic object when it is stretched. In this case, our rubber bands are being stretched around our axle.
- Spring Potential Energy: This is the potential energy of a spring or elastic object when it is stretched. In this case, our rubber bands are being stretched around our axle.
- Gravitational Potential Energy: This is the potential energy an object has by being at a height or position in a gravitational field. Because our car was on a level plane on ground level, our car had zero gravitational potential energy.
- Gravitational Potential Energy: This is the potential energy an object has by being at a height or position in a gravitational field. Because our car was on a level plane on ground level, our car had zero gravitational potential energy.
- Kinetic Energy: This is the energy due to motion. Because our car is so light and is traveling so slowly, the kinetic energy was very low.
- Kinetic Energy: This is the energy due to motion. Because our car is so light and is traveling so slowly, the kinetic energy was very low.
- Thermal Energy: This is the energy converted to heat, as the result of friction during our drive.
- Thermal Energy: This is the energy converted to heat, as the result of friction during our drive.
- Total Energy: Total energy is the amount of energy that remains constant throughout the entire drive. We found this by taking the peak of our potential energy
- Total Energy: Total energy is the amount of energy that remains constant throughout the entire drive. We found this by taking the peak of our potential energy
- Distance vs. Time: This is the distance our car traveled divided by the time it took our car to travel.
- Distance vs. Time: This is the distance our car traveled divided by the time it took our car to travel.
- Velocity vs. Time: This is the velocity of our car as it traveled its five meters divided by the time it took itself to do so.
- Velocity vs. Time: This is the velocity of our car as it traveled its five meters divided by the time it took itself to do so.
Reflection
Reflection
Two things I believe I excelled in during this project are my collaboration and my communication. During this project, I helped divide up work among everybody to make sure we all did our part. I also did my best to communicate with everybody about how we should go about tackling our assignment. The area in which I believe that I can improve next time is encouraging my groupmates more to help with the building process.
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