Static Charge (physics Only) (GCSE Physics)

A classroom demonstration shows a negatively charged rod brought near small pieces of paper which are attracted then repelled and jump off. Why do they sometimes repel after touching the rod?

What is a safe practice to reduce the risk of a harmful static discharge when working with electronics?

Which diagram best shows electric field lines around an isolated negatively charged sphere?

A charged metal sphere is touched by a second identical uncharged metal sphere and then separated. What is the charge on each sphere afterwards?

What is the typical effect of humidity (higher moisture in air) on static charge accumulation?

Why are sharp points used on lightning conductors and charged point dischargers?

Why are vehicles less likely to give a painful static shock when fitted with a conductive grounding strap that drags on the road?

Which particle is the main mobile charge carrier in most solid conductors during static charging experiments?

When two different insulating materials are rubbed together, they become charged by the process called:

What happens to the electric field strength of a point charge as you move farther away from the charge?

A piece of insulating plastic rod becomes negatively charged when rubbed with a cloth. Which of the following explains why the rod becomes negative?