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Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is elastic potential energy?
π‘ Hint: Think of an example, like stretching a rubber band.
Question 2
Easy
What is Young's Modulus?
π‘ Hint: Consider how much force is needed to stretch different materials.
Practice 4 more questions and get performance evaluation
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?
π‘ 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.
π‘ Hint: Consider what Young's modulus tells us about a material.
Solve and get performance evaluation
Push your limits with challenges.
Question 1
A copper wire of length 5 m and cross-sectional area 3 Γ 10^-5 mΒ² 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.
π‘ 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.
π‘ Hint: Consider how forces change during use in the real world.
Challenge and get performance evaluation