6. Describe the resultant effect (attraction or repulsion) of the fol i) A negatively charged rod is brought CLOSE to a neutral pith ball. ii) A negatively charged rod is brought CLOSE to a negative pith bal iii) A negatively charged rod is brought CLOSE to a positive pith bal iv) A negative rod TOUCHES a neutral pith ball. v) A positive rod TOUCHES a neutral pith ball.

i) **Attraction:** When a negatively charged rod is brought close to a neutral pith ball, the electrons in the pith ball are repelled by the rod's negative charge. This causes a slight shift in the electron distribution within the pith ball, creating a slightly positive side closer to the rod and a slightly negative side further away. Since the attractive force between the negative rod and the closer positive side is stronger than the repulsive force between the rod and the further negative side, the overall effect is attraction.<br /><br />ii) **Repulsion:** A negatively charged rod brought close to a negatively charged pith ball will result in repulsion. Like charges repel each other.<br /><br />iii) **Attraction:** A negatively charged rod brought close to a positively charged pith ball will result in attraction. Opposite charges attract each other.<br /><br />iv) **Repulsion:** When a negative rod *touches* a neutral pith ball, some of the electrons from the rod transfer to the pith ball. This gives the pith ball a net negative charge. Since both the rod and the pith ball are now negatively charged, they will repel each other.<br /><br />v) **Attraction:** When a positive rod *touches* a neutral pith ball, some of the electrons from the pith ball transfer to the rod. This leaves the pith ball with a net positive charge. Since the rod is positive and the pith ball is now positive, after initial contact and electron transfer, they will attract each other.<br />