# Modulus of Rigidity: Definition & Equation

Instructions:

question 1 of 3

### Given a steel rod under a shear stress of 240 MPa and a strain of 0.003, what is the Shear Modulus of steel?

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### 2. A concrete beam is under 50 ksi shear stress. What is its final length if the initial length is 6 in? (the Modulus of Rigidity of concrete is 3 x 106 psi)

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The quiz/worksheet combo is useful in testing your understanding of the modulus of rigidity formula. You'll be asked to find the shear stress and modulus on the quiz.

## Quiz & Worksheet Goals

You can assess your knowledge of the following topics:

• Calculating the change in length of a beam in shear direction
• The formula for the modulus of rigidity
• Calculating shear modulus
• Finding the shear stress

## Skills Practiced

• Reading comprehension - ensure that you draw the most important information from the lesson on the modulus of rigidity
• Information recall - access the knowledge you have gained about calculating the modulus of rigidity of concrete
• Knowledge application - use your knowledge to answer questions about using the modulus of rigidity formula