LuisMarin-RollerCoasterLab

School
Charter Oak High **We aren't endorsed by this school
Course
SCIENCE 101
Subject
Physics
Date
Oct 10, 2023
Pages
1
Uploaded by SuperPheasantMaster880 on coursehero.com
Roller Coaster Lab Introduction: The purpose of this roller coaster lab was to build a roller coaster using limited materials, then to drop marbles with different weights and heights down the roller coaster, to find the change in speed, kinetic energy and potential energy. Kinetic energy is the amount of energy that an object possesses due to its motion, while potential energy is energy held by an object because of its position relative to other objects. Potential energy can be converted into kinetic energy, like for example if you drop a ball. As the ball moves faster and faster toward the ground, the force of gravity will transfer the potential energy to kinetic energy. Kinetic energy can be transferred to potential energy if something is not at work, but it has the potential to do that work. ` Methods: We built our roller coaster using tape and lots of construction paper. We used cardboard as our base to make sure the roller coaster wouldn't fall over. It took about 5 days to build this roller coaster. The reason it took this long was we decided halfway through making our original design that we should do something else instead. The design process was pretty simple for our group. In order to make the loops on our roller coaster, we cut little slits on the side of the construction paper, so that it would be easier to fold into a circle. We also did this technique for the track, so that the ball wouldn't go flying off the coaster. Our final project was not even close to our intended design, because after looking at what other groups were building, we decided to change our design to make our coaster look and work better. Data: Luis Marin - Roller Coaster Data Sheet Results: 1st Trial 2nd Trial 3rd Trial 4th Trial 5th Trial Height: .72M Height: .80M Height: .85M Height: .80M Height: .80M Mass: 16mm Mass: 16mm Mass: 16mm Mass: 20mm Mass: 24mm V: 4.895 V: 3.3 V: 2.4849 V: 2.695 V: 2.541 KE: 191.6882 KE: 87.12 KE: 49.2032 KE: 72.63025 KE: 77.480172 PE: 112.896 PE: 125.44 PE: 133.28 PE: 156.8 PE: 188.16 Discussion: The average velocity changed mostly based on our changes of height, and not so much on the weight. As we continued to drop the ball from higher heights, the marble became faster and had more velocity. The change in mass didn't really affect much, as the data stayed similar to the original marble used. I believe that not all of the potential energy converted exclusively to kinetic energy, as we probably lost some energy on our 1st loop. I feel our roller coaster was really well designed and everything worked as we intended it to. If we had to remake our roller coaster, I would probably make it start from a greater height, to get the most amount of velocity we can. I would also try to make the coaster out of different materials if possible.
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