A. Write T if the statement is true and F if false. REMEMBER There are three types of charges: positive, negative, and neutral. 2. The only factor that affects the charge of objects when you rub them is their electron affinity 3. Charges are not always conserved when you charge an object by induction. 4. Protons are the charge carriers. 5. Conductors permit the movement of charges through it. 6. Charging by friction can take place even if two objects are not in contact with each other. 7. In a neutral sphere, the number of positive charges is more than the number of negative charges. 1.1. Methods of Electrostatic Charging 12 10. 11. 12. 13. 14. 15. Triboelectric series ranks materials based on their electron affinities. The number of protons determines the element of an atom. Protons and neutrons can freely move from one object to another. Charges in a conducting sphere tend to stay at the surface. A grounded wire transfers excess charges to Earth. Unlike charges attract. The algebraic sum of all the electric charges in any closed system is constant. Electrons hang out around the nucleus. B. Using the letters A to E, arrange the following steps in charging an UNDERSTAND object through induction. Attach the metal sphere on an insulating stand. Put the rod close to the sphere but not too close for the objects to touch. 1. 2 3. The charges will be rearranged in the sphere. 4. Attach a grounded wire to the metal sphere. 5 Remove the grounded wire and move the rod away from the metal sphere. C. Draw the charge distribution of the following neutrally charged - APPLY spheres. conductor insulator conductor insulator - - 2