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PLAN Aim: to find out how the length of a wire is related to the resistance of a wire. Prediction: I predict that as the length of wire increases so will the resistance. This is because the longer the wire, the more particles, meaning an increase in the number of electrons. As a result of this, more collisions will take place, increasing the resistance. When the wire is longer, electrons have a longer distance to travel, increasing the number of collisions. In addition, in a longer wire, the electrons have to squeeze together for a longer amount of time, to pass through the wire, as oppose to a short wire. If the collisions happen often enough, then the current will be reduced and the metal will become hotter. The heat would also increase the resistance, as the particles would move around quicker and with more energy, resulting in more collisions. So, if...

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