Energy stored in a spring: Forces: Physics: GCSE (9:1)

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17 Terms

1
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Elastic potential energy

The energy stored in when an object is stretched or compressed

<p>The energy stored in when an object is stretched or compressed</p>
2
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Work done on a spring

Equal to the amount of elastic potential energy stored in a spring when it is elastically stretched

<p>Equal to the amount of elastic potential energy stored in a spring when it is elastically stretched</p>
3
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Elastic stretch

When an object returns to it original shape when the stretching force is removed

<p>When an object returns to it original shape when the stretching force is removed</p>
4
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Inelastic (plastic) stretch

When an object does not return to it original shape when the stretching force is removed

<p>When an object does not return to it original shape when the stretching force is removed</p>
5
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Ee = 1/2 ke²

The equation linking elastic potential energy, spring constant and extension (or compression)

<p>The equation linking elastic potential energy, spring constant and extension (or compression)</p>
6
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Ee

The symbol for elastic potential energy

<p>The symbol for elastic potential energy</p>
7
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k

The symbol for spring constant

<p>The symbol for spring constant</p>
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e

The symbol for extension (or compression)

<p>The symbol for extension (or compression)</p>
9
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Joules (J)

The SI unit for energy

<p>The SI unit for energy</p>
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Newtons per metre (N/m)

The SI unit for spring constant

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Metres (m)

The SI unit for extension

<p>The SI unit for extension</p>
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Force-extension graph

A graph of force against extension for an object being stretched

<p>A graph of force against extension for an object being stretched</p>
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Significance of the gradient of a force-extension graph

Equal to the spring constant of the object being stretched when it is stretching elastically

<p>Equal to the spring constant of the object being stretched when it is stretching elastically</p>
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Significance of the area under a force-extension graph

Equal to the work done or the elastic potential energy stored by the object being stretched

<p>Equal to the work done or the elastic potential energy stored by the object being stretched</p>
15
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Linear extension (on a force-extension graph)

Occurs below the limit of proportionality when the object is deforming elastically

<p>Occurs below the limit of proportionality when the object is deforming elastically</p>
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Limit of proportionality (on a force-extension graph)

The point at which the extension of the object changes from a linear to a non-linear extension

<p>The point at which the extension of the object changes from a linear to a non-linear extension</p>
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Non-linear extension (on a force-extension graph)

Occurs above the limit of proportionality when the object is deforming inelastically

<p>Occurs above the limit of proportionality when the object is deforming inelastically</p>