Questions 1-5 with little work if needed

Name: 1) The diagram below shows proton P located at point A near a positively charged sphere. Sphere If 6.4 x 10" joule of work is required to move the proton from point A to point B, what is the potential difference between A and B? 6.4 x 10-19 V B) 4.0 x 10-19 V C) 4.0 V D) 6.4 V 2) If 4.8 x 10-17 joule of work is required to move an electron between two points in an electric field, what is the electric potential difference between these points? A) 4.8 x 102 V B) 1.6 X 10-19 V C) 4.8 x 10-17 V D) 3.0 x 102 V 3) A balloon is rubbed against a student's hair and then touched to a wall. The balloon "sticks" to the wall due to A) electrostatic forces between the particles of the balloon and the particles of the wall B) magnetic forces between the particles of the wall C) electrostatic forces between the particles of the balloon D) magnetic forces between the particles of the balloon and the particles of the wall 4) Two electrically neutral metal spheres, A and B, on insulating stands are placed in contact with each other. A negatively charged rod is brought near, but does not touch the spheres, as shown in the diagram below. NEGATIVELY CHARGED ROD INSULATING STANDS How are the spheres now charged? A) A is negative and B is positive. ) A is negative and B is negative. B) A is positive and B is negative. D) A is positive and B is positive. 5) The diagram below shows a point, P, located midway between two oppositely charged parallel plates. + + + + + . P - If an electron is introduced at point P, the electron will A) accelerate toward the negatively charged plate B) travel at constant speed toward the negatively charged plate accelerate to ward the positively charged plate D) travel at constant speed toward the positively charged plate