GCSE Combined Science (AQA)

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Work & Elastic Potential

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Forces Forces and elasticity

Work & Elastic Potential

2:42 Elastic Potential Energy
Spec 4.5.3
Previous Gradient of a Force-Extension Graph Next Kinetic & Elastic Conversions
  • Elastic deformation involves work done to store energy in a deformed object.
  • Work is the transfer of energy when an object is moved by an applied force.
  • Deformations occur with multiple forces, including extensions and compressions.
  • Stretching a spring is an example of deformation with length change due to equal and opposite forces.
  • Work done on a spring stores energy as elastic potential energy.
  • Elastic potential energy helps an object return to its original shape.
  • Elastic potential energy is stored as bonds try to restore particles to their original shape.
  • When force is released, elastic potential energy converts to kinetic energy, moving the spring back.
  • Elastic potential energy can be used practically, e.g., in elastic bands or catapults.
  • Elastic potential energy is stored by deforming elastic bands or springs and released as kinetic energy.
  • Inelastic deformations involve work done to break bonds, causing objects to heat up.
  • Inelastic deformations result in permanent deformation, with energy released as heat.

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