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Elastic Assessment The pulling force, which is applied, is called stretch. When you stretch a spring the difference between the stretched and the unstretched spring is called extension. In this experiment, I am going to investigate how the extension of a spring, depends on the pulling force applied to the material. My results show me that the extension of the spring is directly proportional to the force applied. Therefore when the force is doubled, the extension is also doubled. My experiment shows the characteristics of Hookes Law. Materials are said to obey Hookes Law, if their extension is directly proportional to the stretching force. Hookes Law applies to many different materials such as wood, metal and glass, extension on these materials however is too small to be measured, nearly all materials infact are elastic- they return back to their original shape when the force is removed. If force is continued to be added to...

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