My group and I build a rubber and car but the rubber band car only went a meter so we got rid of the rubber bands and put a block of wood on the front. We put the block of wood on the front because more mass is equal to more acceleration. So we used a ramp to make our car go down instead of the rubber bands.
Content:
Velocity each meter:
1 m- 3.57 m/s
2 m- 2.38 m/s
3 m- 2.22 m/s
4 m- 1.79 m/s
5 m. 1.1 m/s]
1 m- 3.57 m/s
2 m- 2.38 m/s
3 m- 2.22 m/s
4 m- 1.79 m/s
5 m. 1.1 m/s]
Potential Energy: 1.35 J
Kinetic Energy: 2.70829125, 1.203685, 1.047285, 0.68087125, 0.257125 (Different each meter)
Total Energy: 1.35
Kinetic Energy: 2.70829125, 1.203685, 1.047285, 0.68087125, 0.257125 (Different each meter)
Total Energy: 1.35
Friction:
We put rubber bands on the wooden wheels to get more traction so the vehicle goes faster. The plastic that the wheels are held on are used so it wouldn’t be wood on wood, which creates more friction.
We put rubber bands on the wooden wheels to get more traction so the vehicle goes faster. The plastic that the wheels are held on are used so it wouldn’t be wood on wood, which creates more friction.
Reflection
My group did pretty well but there were some working problems. I built the car and my group members were either off task or were trying to help but I basically built the entire car. That took around a week and a half. Then the day we started on our presentation I got sick and did not go to school the next day. So I did not get to do any of the presentation. I found the ramp we used and put it together and fixed the car so it would go 5 meters and go straight. I thought of the idea to put the rubber bands on the wheels to create less friction. I also thought of the idea to put plastic in the middle so the axle would not we rubbing wood against wood because i know that that creates more friction. The only thing I did not help on was the presentation and that was because I was sick and they did not send it to me for me to work on. Other than that our group worked well we communicated well because when I asked for something while I was doing something else on the car they usually brought it to me. We were sometimes all off task so the next time I get to pick groups I will pick better groups.
Today we were able to pick groups again and I think I picked a good group because we all get along and know each other and we will always be a little hard on each other to get stuff done. Our new project is helping a world problem and it is due in 2 weeks and we already started our presentation. What I'm trying to say is that I picked a group with my friends and we did not get work done together so I will always pick a group that will do equal work.
Today we were able to pick groups again and I think I picked a good group because we all get along and know each other and we will always be a little hard on each other to get stuff done. Our new project is helping a world problem and it is due in 2 weeks and we already started our presentation. What I'm trying to say is that I picked a group with my friends and we did not get work done together so I will always pick a group that will do equal work.