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Stress, strain and Young modulus
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From extension to material properties

From extension to material properties

When a wire or rod is pulled by a tensile force FFF, it gets longer by an extension xxx. Extension is the increase in length, so x=final length−original lengthx = \text{final length} - \text{original length}x=final length−original length.

Stress, strain and Young modulus Lesson

  1. A Level
  2. /Physics
  3. /Stress, strain and Young modulus

Step-by-step lessons on Edexcel A Level Physics Stress, strain and Young modulus. 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.

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