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SITEMAP   School Physics Notes: ELECTRICITY 2. Interpreting simple circuits

UK GCSE level age ~14-16 ~US grades 9-10 Scroll down, take time to study content or follow links

ELECTRICITY Section 2: Introduction to electrical circuits and how to draw them, circuit symbols, series and parallel circuits


Sub-index for electricity section 2 notes on electrical circuits

2.1 Definitions: what is an electric current? what is an electrical circuit?

2.2 Circuit symbols and drawing-constructing circuit diagrams

2.3 Examples of simple circuits and their interpretation

2.4 More examples of comparing simple circuit diagrams (may involve some simple current deductions)

2.5 More complex bulb circuits and deducing the current flowing (involves some simple current calculations)

See also overlapping Parts

1.1 Important definitions, descriptions, formulae, units for electricity

1.6 Power, energy transfer & electricity cost calculation QUESTIONS

See Electricity section 3 for more problems to solve involving the

 V = IR,  Q = It  and  E = QV calculations equations for exam practice

It is better to be able to rearrange a formula rather than using a triangle

Basic QUIZ on "Electricity and Magnetism"

Basic revision questions from UK KS3 science-physics (~US grade 7-8)on simple circuits, circuit symbols and components, current flow and ammeter readings, useful circuits, hazards and how they work, magnets and electromagnets - what have you remembered from before GCSE physics?

Extra images for further questions later


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ALL my electricity and magnetism notes

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Electricity and magnetism revision notes sections index

1. Usefulness of electricity, safety, energy transfer, cost & power calculations, P = IV = I2R, E = Pt, E=IVt

2. Electrical circuits and how to draw them, circuit symbols, parallel circuits, series circuits explained

3. Ohm's Law, experimental investigations of resistance, I-V graphs, calculations V = IR, Q = It, E = QV

4. Circuit devices and how are they used? (e.g. thermistor and LDR), relevant graphs

5. More on series and parallel circuits, circuit diagrams, measurements and calculations

6. The 'National Grid' power supply, environmental issues, use of transformers

7. Comparison of methods of generating electricity (= energy 6)

8. Static electricity and electric fields, uses and dangers of static electricity

9. Magnetism - magnetic materials - temporary (induced) and permanent magnets - uses

10. Electromagnetism, solenoid coils, uses of electromagnets 

11. Motor effect of an electric current, electric motor, loudspeaker, Fleming's left-hand rule, F = BIL

12. Generator effect, applications e.g. generators generating electricity and microphone


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