draw circuit diagrams with power sources (cell, battery, d.c. supply or a.c. supply), switches, lamps, resistors (fixed and variable), variable potential divider (potentiometer), fuses, ammeters and voltmeters, bells, light-dependent resistors, thermistors and light-emitting diodes
state that the current at every point in a series circuit is the same and apply the principle to new situations or to solve related problems
state that the sum of the potential differences in a series circuit is equal to the potential difference across the whole circuit and apply the principle to new situations or to solve related problems
state that the current from the source is the sum of the currents in the separate branches of aparallel circuit and apply the principle to new situations or to solve related problems
state that the potential difference across the separate branches of a parallel circuit is the same and apply the principle to new situations or to solve related problems
recall and apply the relevant relationships, including R = V/I and those for current, potential differences and resistors in series and in parallel circuits, in calculations involving a whole circuit
describe the action of a variable potential divider (potentiometer)
describe the action of thermistors and light-dependent resistors and explain their use as input transducers in potential dividers
solve simple circuit problems involving thermistors and light-dependent resistors
LESSON VIDEOS
18.1 Series Circuit
18.2 Parallel Circuit
18.3a Resistors in Series and Parallel (effective resistance)
18.3b Resistors in Series and Parallel (solving questions)
18.4 Potential Dividers & 18.5 Input Transducers
I DO, YOU DO, WE DO! LET'S PRACTICE!
WS 18.1 Series and Parallel Circuits.pdf
WS 18.1
WS 18.2 More Practice on Series and Parallel Circuits.pdf
WS 18.2
WS 18.3 Potential Dividers and Input Transducer.pdf
WS 18.3
APPLETS TO TRY!
Create your own series and parallel circuits to find out how voltage, current and resistance are related!