Physics Paper 1 · P2 · Lesson 2.2
Current means how quickly electrical charge flows.
An electric current is a flow of electrical charge. Current tells us how much charge passes a point each second. We measure it in amperes (A), often called amps.
Charge is already present throughout the wires. It is not used up in the lamp.
No timer. Read the explanation after each answer.
Daily 5 · Exam practice · Extra calculation practice · A4 revision sheet
Start with lessons 2.1–2.6 for the circuit basics. Lesson 2.15 offers extra calculation practice. The P2 specification content is shared by Foundation and Higher Tier; extra practice is not Higher Tier-only.
AQA Combined Science Trilogy specification · 6.2.1.2. Original notes, questions and diagrams. Circuit animations are simplified; motion is deliberately slowed. Measurements and example values are illustrative. All practical circuits use suitable supervised low-voltage apparatus.
Photographs: Photograph of the inside of a UK plug by Alby Reid, Public domain, released by the copyright holder; Electricity pylons near Grafham Water by Mat Fascione, CC BY-SA 2.0; Photoresistor 2 by oomlout, CC BY-SA 2.0. Images displayed without cropping or alteration.
