Factors change Essay Example for Free

Factors change EssayAfter I have recorded all the results and written into tables, I used the data to make interprets, which argon potential difference against current. When I finished marking all the points on to the graphs, I put a line of surpass fit through. There are five-spot graphs in total, each represents a thickness, on a graph there are five lines of best fits, and each represents a length of a thickness. Then I pick a point on the lines of best fits and calculate the gradient (resistance) by dividing the point on y-axis (voltage) by the point on the x-axis (current) as the ohms law states that V=IR. Finally, I have to draw five graphs to show the relations between length (on the x-axis) and resistance (on the y-axis). Also, I have to draw another graph to show the relations between thickness (on the x-axis) and resistance (on the y-axis). Evaluating Although the whole experiment has been going very well, scarcely the results seems to show some bias or errors as in one or two of the graphs, the expression is quite strange because some of the gradient (resistance) is not proportional to the lengths. Overall, the experiment can be express as a success.The aim of this experiment is to bar how the resistance change as the factors change. There are so many variables-temperature of surroundings, length, thickness, material, temperature of the wire, surface area, magnetic properties, coated or not and purity-that can be elect to measure in this experiment. But in this experiment I am only going to measure two of them, which are length and thickness because these two are the easiest to measure and show the effects on the resistance.Prediction The result should be showing that the resistance increase as the length or thickness increase. This happens because when length or thickness increases, the current will decrease. As the voltage wont change, if the current decreases, and so the resistance will increase. Method In the experiment I will need to use mechanism listed below.