This question is about electrostatic charges.
Complete the sentences using words from the box. Each word may be used once, more than once or not at all.
electronsnegativeneutralneutronspositiveprotons \begin{array}{|cccccc|} \hline \text{electrons} & \text{negative} & \text{neutral} & \text{neutrons} & \text{positive} & \text{protons} \\ \hline \end{array} electronsnegativeneutralneutronspositiveprotonsWhen a polythene rod is rubbed with a dry woollen cloth, the polythene rod gains __________.
After the polythene rod has been rubbed with the woollen cloth, the polythene rod has a __________ charge.
Electrostatic charges are useful in industrial spray-painting systems, such as those used to paint metal car bodies.
The droplets of paint are given the same type of electrostatic charge as they are expelled from the spray gun. Explain why this is an advantage.
The metal car body is connected to earth (grounded). Explain why this is an advantage.
Give one hazard caused by static electricity in an industrial or everyday setting, and state how the risk from this hazard is reduced.
31 exam-style questions on Edexcel IGCSE Physics Electric charge. Each one has a worked solution and a mark scheme showing where the marks go.