Wednesday, 22 May 2013

#2 Entry- The Marble Run (Techexploration on Gravitiational Energy)

Today we had to build a track for the marble to roll down but the slower it is the better.

We were given several materials such as pins, a board, straws small, medium and large-sized marbles. Using these materials we had to build a track so that the marbles could roll down slowly.


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 too. It did not stop halfway because of barriers.
3.    How long did it take the marble to complete its journey?
It took 3 seconds to complete its journey.
4.    What was its overall speed?
Its overall speed is 3 seconds
5.    What other factors affect the performance of your marble?
The clay that we used was sticky, and the pins were used as barriers
6.    How might your design be improved?
We should have used straws instead of clay becau
se the clay made the board and the marble sticky. Furthermore, our marble rolled down really quickly as the clay did not really slow it down. We could also use the pins as barriers to slow the marble down instead. The size of the marble affected our result as well. We used the biggest marble provided, hence, it would have the most kinetic energy and this will cause it to roll down faster.

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