Difference between revisions of "Hooke's Law"
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| style="height:20px; width:200px; text-align:left;" |When a [[weight]] is added the spring [[Extension|extends]]. If the [[weight]] is doubled the [[extension]] is also doubled. | | style="height:20px; width:200px; text-align:left;" |When a [[weight]] is added the spring [[Extension|extends]]. If the [[weight]] is doubled the [[extension]] is also doubled. | ||
|} | |} | ||
| + | : [[Elastic]] [[object]]s have an [[Elastic Limit]]. This means if the [[force]] is too big they stop obeying '''Hooke's Law''' and start to [[Deformation|deform]] [[Plastic (Property)|plastically]]. | ||
===Equation=== | ===Equation=== | ||
Revision as of 10:06, 14 October 2018
Key Stage 3
Meaning
Hooke's Law states that the extension of an elastic object is proportional to the force applied to the object.
About Hooke's Law
- Hooke's Law describes how elastic objects behave when a pair of opposing forces is applied.
- Hooke's Law is described by the equation: Force = Spring Constant x Extension
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| When a weight is added the spring extends. If the weight is doubled the extension is also doubled. |
- Elastic objects have an Elastic Limit. This means if the force is too big they stop obeying Hooke's Law and start to deform plastically.
Equation
\( F = kx \)
\( F = k \times x \)
Where: \[F\] = Force applied \[k\] = Spring Constant (stiffness of the elastic object) \[x\] = Extension of the object