Banana leaf marble ramp conservation of energy

Wednesday evening banana leaf harvesting was forgotten. Six in the morning in the semi-dark stumbling around in the jungle was the result.


Set up really did not get underway until 8:04, with the first ramp in place by 8:20. 


This term the steel marbles were used along with the equipment seen above.


As was done last summer, the theory preceded the experiment.


This term the theory was reflected onto the Smartboard in Desmos.


Only after the theory was covered was the experiment explained and demonstrated. This took until 9:00. This approach allows space for a lecture on experiments that confirm or reject a proposed theory. The split in the momentum results for three marbles into five marbles provided an example of how experimental results can differ, but a general consensus solution can be reached even given differing results. 


Grace Marie and Bracey hold the meters sticks while Veronica marks the heights. Heights were again set to the Fibonacci sequence. 


Jerson, Trusty, Ashton, Damien, and Ford set up a third banana leaf marble ramp,


Ford and Damien 

Jerson records data, Trusty released the marble, Ashton times


Maicalany calculates as Iryann looks on.

The steel marble is rolling on the table. Yolanae will retrieve the marble, Bracey is timing, Grace Marie released the marble, Veronica observing.



Another marble run


Bracey timing


The left board including the momentum results from Wednesday.


The right board at the end of class. 


Marvin and Trishelle re-measure heights due to banana leaf sag at 11:00


Trishelle and Marvin working on sliding the measurement rig backward. This procedure was originally developed by students.


Trishelle working on measuring the ramp height


Moki, Kayla, and Jaymar worked on the north rig along with Marikai and Haily.


Haily gets ready to release a marble, Moki is timing. Marikai recorded data. 


Haily prepares to release the steel marble from 5 cm above the tale. 

Moki checks a time.


Marikai getting timing data from Moki.


Kayla holds the meter stick in place as Jaymar observes.



Right board at the end of the 11:00 class. 

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