How might an uncharged object become positively charged? (e.g. AQA Higher specimen paper 1)
Ask student what causes charge, i.e. motion of electrons.
So answer is that electrons move away from the object leaving it positively charged, or move onto a neutral object leaving it negatively charged.
JW
Related Physics GCSE answers
All answers ▸(A-level but box won't let me change it from GCSE) A particle of charge q and initial speed v is stopped by a potential difference V in distance d and time t. What was its initial momentum?
What is an atom?
What is the Doppler effect and how is it exploited in everyday life?
An electric Iron rated at 2600 W contains a steel plate, heated to a working temperature of 215°C. Room temp=18°C. Deduce whether the plate could reach its working temperature in less than 1 minute. Mass (steel plate)=890g & C (steel)=450J/kg/K