Objectives

Lesson outcomes

  • Use the terms elastic deformation, plastic deformation, and elastic limit correctly.
  • Explain why the area under a force-extension graph represents work done.
  • Determine elastic potential energy from the area under a force-extension graph.
  • Recall and use EP = 1/2 Fx and EP = 1/2 kx^2 for deformation within the limit of proportionality.
Syllabus

CIE 9702 syllabus points

4 linked

Lesson Notes

Student guidance and lesson notes

Overview

Compare elastic and plastic behaviour and relate it to stored energy. Use this page to organise the main ideas, worked examples, and linked resources.

What You Need to Know

  • Compare elastic and plastic behaviour and relate it to stored energy.
  • Identify the key definitions, models, equations, or diagrams for this lesson.
  • Use at least one worked example, observation, or practical link to make the idea concrete.

How to Work Through It

  1. Start with the prior knowledge, context, or recall questions for this lesson.
  2. Work through the main explanation, method, diagram, or calculation for this lesson.
  3. Complete the guided practice, discussion, calculations, or practical application.
  4. Review your learning with an exit prompt, short question, or summary task.

Check Your Understanding

  • Can you answer a checkpoint question aligned to the main objective(s)?
  • Can you give a short verbal, written, or numerical response that shows secure understanding?

Common Mistakes

  • Watch out for the likely misconception, error, or weak step in this lesson.
  • Use the comparison, model answer, or explanation that corrects it.

Next Steps

  • Complete the homework, retrieval task, or resource revisit linked to this lesson.
  • Note what you need to carry forward into the next lesson.
Lesson Resources

Materials for this lesson

Use these videos, slide decks, documents, or links to work through the lesson.