‹ GCSE Combined and Separate Science
Electric circuits
Circuit symbols, charge and current, V = IR, I-V graphs, series and parallel circuits, and sensing circuits with LDRs and thermistors.
Start: Circuit symbols, charge and current About 20 min, free
Lessons
Practise and test
By the end you can
Draw and read circuit diagrams, placing ammeters and voltmeters correctly Calculate charge, current, p.d. and resistance with Q = It and V = IR, in mA, kΩ and minutes Recognise and use the I-V graphs of a resistor, a filament lamp and a diode Apply the series and parallel rules for current, p.d. and resistance Predict how sensing circuits with LDRs and thermistors respond Plan and analyse the I-V and resistance required practicals Revision notes
Specifications AQA 8463 (Physics) 4.2.1 and 4.2.2AQA 8464 (Combined Trilogy) 6.2.1 and 6.2.2Pearson Edexcel 1PH0 and 1SC0 Topic 10OCR Gateway J249 and J250 P3.1 and P3.2
Next unit: Mains electricity, the National Grid and static Previous unit: Energy stores, transfers and efficiency
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