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Deformation and Hooke's law

Deformation and Hooke's law

Force-extension graph with Hooke's law region and shaded elastic energy area beside a wire under tension showing length, extension, and cross-sectional area

When a material is pulled in tension, it extends; when it is pushed in compression, it shortens. A force-extension graph describes how one particular sample responds to load.

Mechanical properties of matter Lesson

  1. A Level
  2. /Physics
  3. /Mechanical properties of matter

Step-by-step lessons on OCR A A Level Physics Mechanical properties of matter. Each one builds up to exam-style questions. Physics is one of the most mathematically demanding A Levels -- at least 40% of the marks across the three papers require maths skills at Level 2 (GCSE) standard or above, so build calculation and graph-handling fluency alongside the conceptual content from the start.

Lessons