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Electricity and Circuits
A free video lesson on electricity and circuits — what a circuit is, which materials conduct, how we measure electricity, series versus parallel circuits, and how to stay safe. Followed by real quiz questions, marked instantly. No account needed.
How does an electric circuit actually work? This lesson covers complete circuits, conductors and insulators, measuring current (amps), voltage (volts) and resistance (ohms), the difference between series and parallel circuits, and electrical safety. It is part of Learning Hub, a UK-curriculum learning site built by a home-educating family. Watch, try the questions, then make a free account to unlock every subject.
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Questions parents ask
- What makes a circuit work?
- A current flows only around a complete, unbroken loop, driven by a cell or battery. Metals like copper are conductors that let current flow; plastic and rubber are insulators that block it. A switch opens or closes the loop.
- What is the difference between series and parallel circuits?
- In a series circuit everything is on one loop, so if one part breaks, everything stops. In a parallel circuit components are on separate branches, so if one breaks the others keep working — which is why homes are wired in parallel.
- Is this suitable for KS3 and GCSE?
- Yes. Electricity and circuits is a core physics topic for Years 9 to 11 (KS3 and GCSE), and this lesson and quiz work as a clear introduction to it.
- Is it really free?
- The video and these questions are free with no account. The full site — every subject for Years 6 to 11, mock papers, learning games and full reading support for dyslexia — is £6.99 a month for the whole family, with a 14-day free trial and no card needed to start.