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:<math> W = 0J</math>
No work has been done because the movement is not in the direction of the force. The weight acts downwards but the movement was horizontal.
===Work Done by Deformation===
: When an [[object]] is [[deformation|deformed]], such as a spring being stretched, '''work''' is done to [[Energy Transfer|transfer energy]] into its [[Elastic Potential Energy Store]].
====Work Done on a Spring====
{| class="wikitable"
|-
|[[File:HookesLawSpring.png|center|400px]]
|-
| style="height:20px; width:200px; text-align:left;" |'''Work''' is done to stretch this spring.
|}
: The Force needed to stretch a spring is proportional to the extension of the spring ([[Hooke's Law]]). Force = Spring Constant x Extension
: The '''Work Done''' on an object is proportional to the force and the distance traveled. Work Done = Force x Distance
: The distance moved is the same as the extension 'x'.
These two equations can be combined:
<math>F = kx</math>
<math>W = Fx</math>
<math>W = (kx) \times x</math>
<math>W = kx^2</math>