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Hooke's law and stiffness
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Stretching and extension

Stretching and extension

Labelled setup for measuring spring extension with a clamp stand, vertical spring, ruler, pointer, and hanging masses, showing original length and stretched length

When a spring or wire is pulled, the applied load is a tensile force. In experiments the load usually comes from hanging masses, so the force is their weight.

Hooke's law and stiffness Lesson

  1. A Level
  2. /Physics
  3. /Hooke's law and stiffness

Step-by-step lessons on Edexcel A Level Physics Hooke's law and stiffness. 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