Sidney is experimenting with two charged objects. She holds the objects close to each other, but she makes sure they never touch. Which is the only hypothesis about the two objects that Sidney would find to be true? O A. If the first object has a positive charge and if the second object has a negative charge, then the objects push away from each other. B. If both objects have a negative charge, then the objects pull toward each other. C. If the first object has a negative charge and if the second object has a positive charge, then the objects push away from each other. D. If both objects have a positive charge, then the objects push away from each other.

A short copper rod has a neutral charge. Negative charges are then applied to the right end of the rod. Which of the following describes the charge on the copper rod 5 s later? A. Both ends of the rod have a positive charge. B. The negative charge is spread evenly along the rod. C. Only the right end of the rod has a negative charge. D. All of the positive charge is in the middle of the rod. The diagram below shows two electric charges, -q and +q, separated by a distance, d. +q -q d What happens to the electric force between the charges if the magnitude of each charge is doubled? A. It becomes 16 times less. B. It becomes 2 times less. C. It becomes 4 times greater. D. It becomes 8 times greater. What is the primary difference between insulators and conductors? A. Electrons are present in insulators but not in conductors. B. Electrons are present in conductors but not in insulators. C. Electrons are free to move in insulators but not in conductors. D. Electrons are free to move in…

Doug rubs a piece of fur on a hard rubber rod, giving the rod a negative charge. What happens? a. Protons are removed from the rod.b. Electrons are added to the rod.c. The fur is also charged negatively. d. The fur is left neutral.

A charged plastic rod attracts a charged glass rod. This means that______________.     a. one of them is negatively charged and the other is positively charged. b.one of them is positively charged and the other is positively charged. c. one of them is negatively charged and the other is negatively charged. d. one of them is negatively charged and the other is neutrally charged.