1.28 Recall that the initial region of a force – extension graph is associated with Hooke’s law

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Photo cred – s-cool

  • Straight gradient – Obedient to Hooke’s law
  • Curve – When it reaches the elastic limit
  • After the elastic limit, the line tends to be straight as the wire has broken (after being disobedient to Hooke’s law)
  • The wire will not be able to return to it’s original shape

 

Extension is proportional to the force 

 

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