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Force on a spring

Forces may change the shape of an object.

An object, such as a spring, stores when stretched or squashed.

When an object, such as a spring, is stretched, the increased length is called its extension.

The equation for Hooke鈥檚 Law is:

Triangle containing different values used in Hooke's law equation.

F = ke

  • F is the force in newtons (N)
  • k is the 'spring constant' in newtons per metre (N/m)
  • e is the extension in metres (m)
  • This equation holds as long as the limit of proportionality is not exceeded.
F = keF = k x e
k = \(\frac{F}{e}\)k = F 梅 e
e = \(\frac{F}{k}\)e = F 梅 k
F = ke
F = k x e
k = \(\frac{F}{e}\)
k = F 梅 e
e = \(\frac{F}{k}\)
e = F 梅 k

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