|MadSci Network: Physics|
Hello, I'm doing an investigation trying to determine the young's modulus of a classroom ruler. I was told (by a not so reliable source) that the value should be 4.5 GPa. I thought this seemed a little low. My experiments indicate a Young's modulus of 16 GPa. So after that breif, here are my questions: -Which value seems more correct, and what would your estimate be? -For a classroom experiement measuring young's modulus with a loaded cantilever, what sort of level of accuracy should I be aiming for? (+/- a few 100000 pascals, or even +/- a few giga pascals??) Many Thanks for any advice, Im really stuck here.
Re: Young's Modulus of a typical classroom wooden metre rule?
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