I understand that the current in a series circuit depends on the voltage supplied and the number and type of
the other components
I can describe how current changes as voltage changes in wires, resistors, metal filament lamps and diodes. I
also know how to investigate this experimentally
I can describe what happens to the current in a circuit when the resistance is changed.
I can describe how the resistance of light-dependent resistors (LDRs) changes with light intensity and how the
resistance of thermistors changes with temperature
I know that lamps and LEDs can be used to indicate the presence of a current in a circuit
charge (W)= current (A) × time (S)
Q=I×T
Q= IT current is 1A, time is 30 sec. Q= 1 x 30 = 30
I=Q÷T 45 sec. charge is 40 I= 40 ÷ 45 = 0.9A
T=Q÷I charge is 15C, current is 3A T= 15 ÷ 3 = 5 sec
energy transferred = charge × voltage
E = Q× V / E= I x T x V
the other components
I can describe how current changes as voltage changes in wires, resistors, metal filament lamps and diodes. I
also know how to investigate this experimentally
I can describe what happens to the current in a circuit when the resistance is changed.
I can describe how the resistance of light-dependent resistors (LDRs) changes with light intensity and how the
resistance of thermistors changes with temperature
I know that lamps and LEDs can be used to indicate the presence of a current in a circuit
charge (W)= current (A) × time (S)
Q=I×T
Q= IT current is 1A, time is 30 sec. Q= 1 x 30 = 30
I=Q÷T 45 sec. charge is 40 I= 40 ÷ 45 = 0.9A
T=Q÷I charge is 15C, current is 3A T= 15 ÷ 3 = 5 sec
energy transferred = charge × voltage
E = Q× V / E= I x T x V
