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Investigating the strength of a Supermarkets plastic bag Aim I have been asked to investigate the strength of a supermarkets plastic bag. I am going to test and analyse the plastic bag by investigating how applying a gradual increasing force effects the extension of the material. Apparatus * 30cm by 1cm strip of plastic bag, * Stand, * Clamp, * Boss, * Weights (N)- 100g * 2 wood blocks, * Ruler Method Before we can begin the experiment my group and I will have to set up the apparatus as shown on the diagram but with excluding the weights. We will set up the apparatus by cutting a 1 by 30cm strip of plastic from a plastic bag. We will proceed by placing the strip in between the two wooden blocks and then into the clamp. We will then begin the experiment by applying the first weight of 1 Newton. After applying the first weight we will then measure the length of...

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