Monthly Archives: November 2012

Test One AS Unit 1

Here’s a few (fairly easy) questions to try. Good students should only need an hour and should get 80% or better. I will grade responses. Click here for the┬áTest

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Stokes’ Law

For a body falling in a fluid, the resistive force creating a viscous drag between the fluid and the body is given by: From purely dimensional considerations (Stokes did the hard part of proving the constant) for two small steel … Continue reading

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Energy and Young’s Modulus

Think about this. The gradient of the linear part of the stress/strain curve is E, the Young Modulus. But, what about the area underneath? Here is a stress strain graph for steel – the linear part. NB: Steel is very … Continue reading

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