Practice Summary (8.7) - MECHANICAL PROPERTIES OF SOLIDS - CBSE 11 Physics Part 2
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SUMMARY

Practice - SUMMARY

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Practice Questions

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Question 1 Easy

Define stress.

💡 Hint: Think about what happens when you apply a force.

Question 2 Easy

What is Hooke's Law?

💡 Hint: Remember the relationship between force and deformation.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is stress defined as?

Force per unit volume
Restoring force per unit area
Change in dimension over original dimension

💡 Hint: Think about how pressure is calculated.

Question 2

True or False: Hooke's Law applies only to materials under large deformations.

True
False

💡 Hint: Consider the limits of linear behavior.

2 more questions available

Challenge Problems

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Challenge 1 Hard

A steel beam experiences a tensile stress of 250 MPa. If the Young's modulus of steel is 200 GPa, calculate the amount of elongation per meter of the beam.

💡 Hint: Revisit the stress-strain relationship.

Challenge 2 Hard

Consider a cylindrical rod of diameter 10 mm and length 1 m subjected to a compressive force that develops a stress of 150 MPa. Determine the compressive strain experienced by the rod, given that the Young's modulus for the material is 120 GPa.

💡 Hint: Understand the relationship between stress, strain, and their importance in material property evaluations.

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