In the first part of our experiment, two materials in their elastic regions and their deformation in respect to the forces applied were observed. In this part of the experiment, the third material, z, and its deformation will be observed in comparison to the first two materials using the same forces.
The formula z = x^3 + 1.375 was first used to find its deformation compared to the rest and we graphed it to see the difference.
As shown above, the deformation values of z are various times higher than that of y1 and y2. This is due to the fact that y1 and y2 are still in their elastic regions whereas z is in the plastic region where it cannot go back to its original shape.
The result given was expected due to z’s polynomial formula that shows its exponential tendency.
Conclusion
In conclusion, the results obtained satisfied proof of Hooke’s Law. Hooke’s law states that the force added to the spring will be directly proportional to the extension and this is indicated through the various graphs.
Hooke's Law Experiment 