1 Know that electric current is related to the flow
of charge
2 Describe the use of ammeters (analogue and
digital) with different ranges
3 Describe electrical conduction in metals in terms
of the movement of free electrons
4 Know the difference between direct current (d.c.)
and alternating current (a.c.)
5 Define potential difference (p.d.) as the work
done by a unit charge passing through a
component
6 Know that the p.d. between two points is
measured in volts (V)
7 Recall and use the equation for resistance R = V/I
8 Describe an experiment to determine resistance
using a voltmeter and an ammeter and do the
appropriate calculations