Does the electron follow the principle of electrostatics? Why? If the frequency of the mains PD is 50Hz, what does that mean in terms of electron movement? (UK) If the frequency of the mains PD is 50Hz, what is the time period of the mains? Does the neutron follow the principle of electrostatics? Why? Does the proton follow the principle of electrostatics? Why? Does the atom follow the principle of electrostatics? Why? Why is an atom not charged? A student walking on a carpet. The student becomes negatively charged because of the friction between his socks and the carpet. Explain why the friction causes the student to become charged A student walking on a carpet. The negatively charged student touches a metal tap and receives an electric shock. Explain why. A student walking on a carpet. Some carpets have thin copper wires running through them. The student is less likely to receive an electric shock after walking on this type of carpet. Suggest why. A student rubs a polythene rod with a dusting cloth. The rod becomes negatively charged and the dusting cloth becomes positvely charged. Describe what happens to the electrons as the polythene rod is rubbed A student rubs a polythene rod with a dusting cloth. The rod becomes negatively charged and the dusting cloth becomes positvely charged. The rod is now suspended from a string tied around its centre. Describe how the student course use this set up and the dusting cloth to show that opposite charges attract.