Resistance Investigation

Aim: The aim of the investigation is to find out whether or not the length of the wire affects the resistance. Prediction: I predict that as the wire increases in length the resistance will increase, (collision of particles causing a decrease in velocity for the moving particle). I think this will happen because as the resistance increases the ions are closer together causing more collisions slowing down the velocity of the current through the wire. …

…directly proportional to the resistance - double the length and the resistance doubles. Evaluation My experiment could have been improved as I could have changed more then one thing about the experiment instead of only changing the length. There was one strange result on the Volts results, however I do not know how this occurred and if I repeated the experiment I would probably make sure all the results fitted in to my experiment properly.