Anyway, now i am back with a new module. Not chemistry anymore, but ISM--> Integrated Science Module. We are trying to find the best solution to problems using our creative and critical thinking minds!
Today during lab lesson again, we had to build a ramp for a marble to roll down. We were given many materials ad 3 different sizes of marbles to choose between them to ensure that it would travel the slowest. The aim of this experiment is to find out how we should build the ramp to make the marble travel as slow as possible.
We were given several materials such as pins, a board, straws, small, medium and large-sized marbles, stopwatch and tape. Using these materials we had to build a track so that the marbles could roll down slowly. We were not able to cut any materials.
Reflection
1. How well did the marble stay on its pathway?
The marble stayed on its path well. It did not roll of the board halfway and completed its route.
2. How well did it turn the corners?
It turned its corners quite well, however sometimes the marble does get trapped when turning the corners.
3. How long did it take the marble to complete its journey?
It took 15s to complete its journey.
5. What other factors affect the performance of your marble?
The tape that we placed and the plasticine to increase friction hence slow down the marble.
6. How might your design be improved?
We could also use the pins as barriers to slow the marble down instead on top of the clay. We could have placed our tape neater so that it would not stop the marble from rolling and we could plan our experiment better by making the gradient steeper because only for one slope the gradient was steep the rest was a little to gradual hence the marble had little kinetic energy roll hence our ramp did not ensure that our marble would roll till the end every time we tried. our marble rolled down really quickly as the clay did not really slow it down.
Thank you for reading! Hope you find it informative!
No comments:
Post a Comment