... not return to its normal length once it has reached its elastic limit as it will be plastic, and I support my prediction with Hook's Law. To make this a fair test I will add and remove the same weight each time. To make my measurements as accurate as possible I will take the reading by placing a mirror behind the meter ruler and placing the pin through the bottom of the rubber band. I will then taking the reading from eye level by looking in the mirror until the pin and the image overlap to become one. To make my experiment as safe as possible I will fix the clamp stand to the table with a g-clamp. I will also make sure the rubber band is fixed to the clamp securely by tightening the clamp onto the rubber band. Diagram: Method: First of all I setup the apparatus and made sure it ...

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