Roller coaster energy

Today in immersion we were learning about all types of energy and forces. In the image shown above, we had to create a roller coaster than was both safe and fun.

With the roller coaster it stored lots of potential energy going up to the top of the first hill, but it released too much kinetic energy going down the hill causing it to go too fast making it an unsafe and not fun ride.

The Next time I tried to make it much safer and as you can see, it was more safe but not as fun. It was not as fun because it did not release as much kinetic energy, making it a slow and dull ride.

The last time I mixed the two together, making it fun and exciting but also very safe. At the start I wanted to make a big hill, but not too big because it would release too much kinetic energy making it go much too fast. The next bump I didn't want to make too big either because it would send the roller coaster flying and with the final hill I made it really big, so it would stop all the kinetic energy from the first hill and then it would carry all the potencial energy on to the next slope creating a fun and fast loop at the end.