GCSE Combined Science (AQA)

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Spring Constant

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Forces Forces and elasticity

Spring Constant

2:26 Deformations and Springs
Spec 4.5.3
Previous Deformations Next Gradient of a Force-Extension Graph
  • The spring constant indicates how stiff a spring is.
  • Deformations occur when multiple forces are applied, including extensions and compressions.
  • The spring constant helps calculate the extension caused by a known force.
  • Extension is calculated as the force applied divided by the spring constant.
  • The variable K represents the spring constant, applicable to non-spring objects too.
  • Calculations are valid only if the spring is not overstretched beyond elastic deformation.
  • Springs with smaller spring constants stretch more for a given force.
  • Comparing two springs with the same force: the one with less extension has a larger spring constant.
  • Spring constant applies to both extensions and compressions.
  • Comparing two springs under compression: the one with less compression has a larger spring constant.
  • Understanding spring constants helps compare spring behaviors in exams.
  • Spring constant is determined by hanging known weights and measuring extension.
  • Avoid adding too much weight to prevent inelastic extensions.
  • Measure extension by observing the change in position of the spring's bottom.
  • Divide the force applied by the extension to find the spring constant.

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