can. The can was charged by conduction, which is done by bringing a negatively charged strip and a neutral object together, polarizing the object. The polarized object is attached to the strip, while electrons move to the object. When the strip is removed the object is negatively charged. In part 4, the ball was a attracted to the rob because there is both positive and negative charges in the pith ball. The negatively charged rod was attracted to the positive charges in the ball. The force that exists between two charged objects is explained by Coulomb’s Law, which states that the electrical force between two charged objects is directly proportional to the product of the quantity of charge on the objects and inversely proportional to the square of the separation distance between the two objects. Finally, in part 6 the calculated Coulomb constant was 1.3x10^8 Nm^2/C^2, which is not close to the theoretical value of 8.99x10^9 Nm^2/C^2, which could point to an error in measurement in the lab or an error in calculations. In the lab we examined aspects of
electric charge, along with induction and conduction, and calculated the value of q in the pith balls. The measurements in the lab were accurate and expected when experimenting with conduction and induction, except for the Coulomb constant which was smaller than the theoretical value.