• Card 25 / 36: Which relationship below correctly defines Young's modulus for one-dimensional deformation?
    A) It is the ratio of stress to strain.
    B) It is the ratio of strain to stress.
    C) It is the ratio of dimensionless strain to stress.
    D) It is the ratio of force to area.
    E) It is the ratio of stress to elongation.

    Answer:
    A) It is the ratio of stress to strain.

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Explanation:

Note that stress has units of pressure and that strain is dimensionless; the ratio has units of pressure. You may wish to refer to the figure in sub-subunit 2.2.2.

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Mechanics I ME102

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Attribution:  Stephanie Redfern, Ranjeet (Ron) Agarwala, and Dr. Steve Gibbs. Mechanics I. The Saylor Academy 2014, http://www.saylor.org/courses/me102/
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