How fun is it to go on a roller coaster? Fun right! Well how about creating your own??? It's ten times better. This roller coaster Krest Kingdom may put you on the edge of your seat. When designing this roller coaster we used toilet paper tubes, egg cartons, chopsticks, straws and tape. On the right is a picture of how it looked. This roller coaster had four hills and two turns. We tested it using a marble. After we completed this project we measure the distance using a string and measuring it. Then we timed how long it took the marble to pass through it. That helped us get the speed. The track was 142 inches long, it took the marble 4:64 milliseconds to pass through the whole obstacle course. To find the speed you would divide 142/4.64. And the result would be 30.603 in per millisecond. Next, the hills were measured with a timer and a marble. The first hill took 0:40, the second one took 1:41, the third one was0:46, and the last one was 2:12 milliseconds. At the end this rollercoaster was succesful. The marble rolled fluently throughout the ride.This was a really fun project that the group worked hard on.
