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Whether forces or weights applied to a bridge cause a depression to the surface of the bridge.
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| Submitted: Thu Jul 11 2002
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Investigation I want to find out whether forces or weights applied to a bridge cause a depression to the surface of the bridge. As well as the weight applied to the bridge there are other variables that can affect the depression of the bridge. These variables are: 1. Distance of the bridge from the pivotal point of the bridge of the bridge (50cm mark) and each other 2. The width of the bridge. 3. The length of the bridge. 4. The material the bridge is made from. For the purposes of a Fair Test all of the variables except the weight being applied, which is the independent variable, must be kept constant as dependant variables so that they cannot affect the results in the changing of the depression. The weights cause the depression on the bridge because they add extra downwards forces. The supports however add an upward force to the bridge and the closer...
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