... as a law expressing the proportionality of strain to the stress causing it. Apparatus The appropriate pieces of equipment I have chosen to use in my experiment are; · Elastic bands of three different lengths, 2cm, 4cm and 6cm, · A clamp and stand, · A metre ruler, · Six weights each weighing 1 Newton. Diagram Method I am going to set up the experiment as shown above, and position the elastic band in the clamp. I will then control the number of weights I add and using the ruler I will record the extended length of the elastic band after each weight is added. Variables There are many things I could change to alter the outcome of my experiment. A list of variables I could change which may affect the results of my experiment are; · Length of the elastic band, · Width of the band, · Elasticity of band, · Previous stress and strain the band has undergone, · Weight of band, * Weight added to band, · Colour of band, · Temperature of ...

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