Frictional Force - Wood on Aluminum

 

5. Although the graphs generated are not entirely the same, the values we calculated appear to be similar and consistent to our claims. However, our uncertainty is not fully accurate and seems to be rather high for this problem. 

Conclusion: The coefficient of kinetic friction of wood on aluminum is around 0.2 to 0.6 Our friction calculations are within the ranges from 0.2 to 0.8, which is not fully accurate to the 0.2 to 0.6 range but is fairly close enough. Some factors could be affecting this answer, the main one being human error. We were tasked by timing the whole situation by hand, which can be off sometimes because seeing the block hit the table and hitting stop on the stopwatch can be tricky. Also, the weight was difficult to keep on the block, causing us to place the weight at awkward angles. I believe with these given conditions, our answer is pretty similar to the real friction in between the two.