Practice Elastic Potential Energy in a Stretched Wire - 8.5.5 | 8. MECHANICAL PROPERTIES OF SOLIDS | CBSE 11 Physics Part 2
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is elastic potential energy?

💡 Hint: Think of an example, like stretching a rubber band.

Question 2

Easy

What is Young's Modulus?

💡 Hint: Consider how much force is needed to stretch different materials.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What happens to the elastic potential energy when a wire is stretched?

  • It's released as heat
  • It's stored
  • It disappears

💡 Hint: Think about how a rubber band behaves when stretched.

Question 2

True or False: Young's modulus can help determine the tensile strength of materials.

  • True
  • False

💡 Hint: Consider what Young's modulus tells us about a material.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A copper wire of length 5 m and cross-sectional area 3 × 10^-5 m² is stretched by a 100 N force. Calculate the elastic potential energy stored in the wire if Young's modulus for copper is 110 GPa.

💡 Hint: Make sure to calculate all steps carefully.

Question 2

Discuss how the elastic potential energy concept is vital in designing suspension bridges, and calculate the work done in stretching the cables if a load of 50,000 N is applied.

💡 Hint: Consider how forces change during use in the real world.

Challenge and get performance evaluation