lab

... Sasha Zouev, Rishil, Carric, Romit Physics IB HL, 12/03/06 Coulomb's Law Lab Aim: To investigate Coulomb's Law by balancing the electrical force with other forces that are easier to measure and to show that the force of attraction/repulsion between two charges is inversely proportional to the square of the distance between them. Hypothesis: My prediction for this experiment agrees with Coulomb's Law in the sense that I think there will be a clear relationship between the force of attraction and the distance between the two charges. There is a logical explanation for this, take into consideration Figure 1. We can see that, sin? = d·L. Also we can notice that, Fe = m·g·sin?. Combining these two equations, we get, F/m·g = d/L or F = m·g·d / L Keeping in mind that g and L are constant, we know that F is proportional to d (F ? d). Furthermore, we have the relationship F =

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