OCR AS Physics

Revision Notes

3.7.1 Deformation & Compression

Deformation & Compression

  • Forces don’t just change the motion of a body, but can change the size and shape of them too
    • This is known as deformation
  • Forces in opposite directions stretch or compress a body
    • When two forces stretch a body, they are described as tensile
    • When two forces compress a body, they are known as compressive

Tensile and compression forces, downloadable AS & A Level Physics revision notes

Diagram of tensile and compressive forces

  • When a force (load) is applied to a spring, it produces a tensile force and causes the spring to extend
  • When a force is applied in the opposite direction, the spring compresses

Load extension and force, downloadable AS & A Level Physics revision notes

Stretching a spring with a load produces a force that leads to an extension

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