V. The Balloon and Static Electricity Questions:
→Start with the original set-up & showing all charges
→ Now use the phet to answer the following questions.
7. Now reset the balloon. Again, collect the blue negative charges from the sweater, by rubbing the balloon on the sweater. Even bring the balloon close to the wall again. What do you notice about the movement of the negative charges in comparison to the positive charges? Explain why.
Type Answer HERE:
8. Click the reset balloons. Then click on the two balloons. Also, click remove wall. It should look like this:
Rub each balloon on the sweater, so that they each have negative charges on them. Place one balloon as far away from the sweater as possible on the right. Then bring the other balloon close to that balloon. What happens and why?
Type Answer HERE:
7. The movement of the negative charges is similar to the movement of the positive charges. When the balloon is rubbed on the sweater, electrons are transferred from the sweater to the balloon, giving it a negative charge. When the negatively charged balloon is brought close to the neutral wall, the negative charges on the balloon repel the negative charges in the wall, causing the negative charges to move away from the balloon and towards the opposite side of the wall. This creates a separation of charges, with the positive charges in the wall being attracted to the negative charges on the balloon.
8. When the two negatively charged balloons are brought close to each other, they repel each other. This is because both balloons have an excess of negative charges, and like charges repel. The negatively charged balloons create an electric field around them, and the repulsion between the negative charges in each balloon causes them to move away from each other.