Evidence of Work:
We had about a week to create an alternative energy vehicle that goes 5 meters exactly. Our car had cardboard wheels and rubber bands around them to create friction. We had axles inside of PVC pipes to reduce friction and to hold them in place. We also attached a long piece of wood to the base so the rubber bands could stretch out fully without it getting caught in the pipe that holds the axle. We tied the string to the rubber bands and then rapped it into the axle and rolled it back to make the car go forwards. Our car worked most of the time but only got to about 4 meters and that’s okay because most other groups did not reach the 5 meter mark.
Content:
Velocity- The rate of covered distance in a direction. The equation is the change of time over the change of distance. We used velocity to create the graphs in our poster and to see how fast our car was going.
Spring Potential Energy- The energy stored by stretching or compressing an elastic object. The equation is ½ kx^2. We used the spring PE to figure out how much energy was in the rubber bands when they were first stretched out.
Kinetic Energy- The energy due to motion. The equation is ½ mv^2. We used KE to track the amount of energy that was transferred and changed throughout the whole time the car was running.
Thermal Energy- All the energy converted to heat. The equation is total E-PE-KE. We used this to also track the energy movement throughout the run.
Friction- The force opposing of the direction of movement due to the roughness of the molecules. There is no equation for friction. There was friction between the wheels and the floor to make it move forward.
Distance vs. Time- Time is the progress of events and distance is how far something has traveled. We used these a lot in our project to determine many different things.
Reflection:
I feel like our group did a really good job on this project. We did have a few problems but other that that it was great. We all worked very well together throughout the weeks. We all were nice to each other and there were no real problems. I think I improved my leadership a little more. I would start the group off with ideas and other things like that. I feel like I have come a long way with leadership but I also feel that I still have to do a lot more. As a group we could all try to work on time management. We were a little behind because our car didnt work the way we wanted it to. We were rushing at the end to have a good presentation. I could probably work on asking other to help to include them. In our group sometimes we had one person standing doing nothing while the other two work. Next time I could ask them to be involved to use all the help we could get.
We had about a week to create an alternative energy vehicle that goes 5 meters exactly. Our car had cardboard wheels and rubber bands around them to create friction. We had axles inside of PVC pipes to reduce friction and to hold them in place. We also attached a long piece of wood to the base so the rubber bands could stretch out fully without it getting caught in the pipe that holds the axle. We tied the string to the rubber bands and then rapped it into the axle and rolled it back to make the car go forwards. Our car worked most of the time but only got to about 4 meters and that’s okay because most other groups did not reach the 5 meter mark.
Content:
Velocity- The rate of covered distance in a direction. The equation is the change of time over the change of distance. We used velocity to create the graphs in our poster and to see how fast our car was going.
Spring Potential Energy- The energy stored by stretching or compressing an elastic object. The equation is ½ kx^2. We used the spring PE to figure out how much energy was in the rubber bands when they were first stretched out.
Kinetic Energy- The energy due to motion. The equation is ½ mv^2. We used KE to track the amount of energy that was transferred and changed throughout the whole time the car was running.
Thermal Energy- All the energy converted to heat. The equation is total E-PE-KE. We used this to also track the energy movement throughout the run.
Friction- The force opposing of the direction of movement due to the roughness of the molecules. There is no equation for friction. There was friction between the wheels and the floor to make it move forward.
Distance vs. Time- Time is the progress of events and distance is how far something has traveled. We used these a lot in our project to determine many different things.
Reflection:
I feel like our group did a really good job on this project. We did have a few problems but other that that it was great. We all worked very well together throughout the weeks. We all were nice to each other and there were no real problems. I think I improved my leadership a little more. I would start the group off with ideas and other things like that. I feel like I have come a long way with leadership but I also feel that I still have to do a lot more. As a group we could all try to work on time management. We were a little behind because our car didnt work the way we wanted it to. We were rushing at the end to have a good presentation. I could probably work on asking other to help to include them. In our group sometimes we had one person standing doing nothing while the other two work. Next time I could ask them to be involved to use all the help we could get.