https://padlet.com/jboyle10/2mfzwf2994lb fifth hour blue en-us 2017-01-22 20:01:03 UTC 2017-01-23 18:20:24 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Alarmclock.png jboyle10 https://padlet.com/jboyle10/2mfzwf2994lb/wish/148590993 Please go through the coaster creator a few times.  Try different changes...for example mass, design, number of loops.  Watch the energy bar carefully and look carefully for what you notice  about the transformations...for example , when PE is greater, this is what is happening with the coaster.  Then, read one other comment and post on that something that contributes meaningfully to our discussion on energy transformations. ]]> 2017-01-22 20:01:03 UTC https://padlet.com/jboyle10/2mfzwf2994lb/wish/148590993 https://padlet.com/jboyle10/2mfzwf2994lb/wish/148807076 My coaster took about three tries to perfect. I had a mass of 700kg and a speed of 7 m/s. The initial hill was the most important  to get enough potential energy, so the coaster wouldn't stop. I chose the highest height possible and this worked. I then added a large loop and a smaller hoop to keep the kinetic and potential energy balanced and to keep my ride entertaining. Once I got to the end, I added a small hill (up and down) and then another just upward slant. After the slant I just made a straight track to the end, in order to...

]]> 2017-01-23 17:56:25 UTC https://padlet.com/jboyle10/2mfzwf2994lb/wish/148807076 https://padlet.com/jboyle10/2mfzwf2994lb/wish/148807094 As I looked tried different things with the roller coaster I noticed that the highest potential energy occurred at the top of the first hill. When the roller coaster came down the hill and was at the lowest point, the highest kinetic energy occurred. The dissipated energy was formed because of friction as the roller coaster was coming to the end of the track. In order for the roller coaster to come safely to end, there needed to be a low amount of kinetic energy. However, for the roller coaster to be able to make it through the track the first hill had to be the largest. This allowed it to build up a lot of potential energy and have a fast speed. All of these examples showed energy transformations. Roller coasters are just one of the many things that experience energy transformations.]]> 2017-01-23 17:56:29 UTC https://padlet.com/jboyle10/2mfzwf2994lb/wish/148807094 https://padlet.com/jboyle10/2mfzwf2994lb/wish/148810061 ...keep the carts from flying off the edge. I found this activity easy, entertaining, and educational. The highest potential energy was at the top of the first hill and the kinetic at the bottom.]]> 2017-01-23 18:05:32 UTC https://padlet.com/jboyle10/2mfzwf2994lb/wish/148810061 https://padlet.com/jboyle10/2mfzwf2994lb/wish/148810563 To be successful with your track, you should add a big hill at the beginning. The hill gets energy so it can make it to the end. Right now the coaster has too much energy. After the hill add a loop or 2, to slow it down a little so it will not crash. Then you want to add another small hill at the end so it will not crash at the end of the ride. This experiment was very fun and a great way to learn about kinetic and potential energy. Some other facts are the highest point of potential energy is a little bit off of the first big hill. You will not make it over if you have a bigger hill than your first hill at the end. The mass and speed of my coaster is 300 kg and the speed was 23 m/s. Once again the experiment was very fun and I am glad we did it.

]]> 2017-01-23 18:07:04 UTC https://padlet.com/jboyle10/2mfzwf2994lb/wish/148810563 https://padlet.com/jboyle10/2mfzwf2994lb/wish/148811770 When I first made my roller coaster, I was sure that if you wanted to add in loops, you'd have to put biggest to smallest. I believed that this would work because if you did big to small, the cars would gradually slow down, and make it to the ending. I ended up having to put a large loop, a small loop, and then another large loop to even out the speed of the cars.  My highest potential energy occurred on my first hill, which was the highest, with a height of 27.8m. My lowest potential energy was right at the end, where last hill was going downward, about to stop. 

]]> 2017-01-23 18:10:11 UTC https://padlet.com/jboyle10/2mfzwf2994lb/wish/148811770 https://padlet.com/jboyle10/2mfzwf2994lb/wish/148815529 It didn't take me long to figure out how to make the roller coaster to have just enough energy. At first I made it too slow so I made the beginning be really steep to have lots of energy to begin with. It ended up being too much so I adjusted the last hill leading to the end and I ended up with just enough energy.]]> 2017-01-23 18:17:58 UTC https://padlet.com/jboyle10/2mfzwf2994lb/wish/148815529