The questions in this quiz are suitable for GCSE physics students studying electrical charges, charging by friction and electric fields. If you struggled with the quiz, don't panic - we've got you!

Using electrons to probe a molecule's nucleus, scientists have demonstrated an elusive phenomenon. (Image credit: Iana Kunitsa via Getty Images) Physicists have studied a rare molecule to look at how ...

A procedure is a subprogram that performs a specific task. When the task is complete, the subprogram ends and the main program continues from where it left off. For example, a procedure may be written ...