Physics 9702 · AS & A Level · Elastic and plastic behaviour

Elastic and plastic behaviour — practice question

An object is pulled until it reaches the elastic limit. Which statement has to describe the stress in the object when it is at the elastic limit?

  • AIt is the maximum stress for which the object obeys Hooke’s law.
  • BIt is the maximum stress that can be applied to the object before it has elastic deformation.
  • CIt is the maximum stress that can be applied to the object before it has plastic deformation.
  • DIt is the maximum stress the object can withstand before it breaks.

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