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Measuring the charge on a polythene rod.
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Physics Coursework Hayley Fairhurst 11R Measuring the charge on a polythene rod. Planning The variables that could affect my investigation are the amount of times the polythene rod is rubbed, the size of the paper and the height the rod is held from the paper. In my investigation I am going to change the variable of the amount of times the polythene rod is rubbed. To see how the amount of times the polythene rod is rubbed affects my investigation I am going to record how many bits of paper the polythene rod picks up after each different amount of rubs. I think that the more times the polythene rod is rubbed, the more pieces of paper it will pick up. I think this will happen because as the polythene rod is rubbed with the cloth, the cloth atoms will loose electrons so therefore become positively charged. The polythene rod will...
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