Outcomes

Reinforce Current is the rate of flow of charge Q = I × t

Introduce idea of free electron movement in metals- which way do they flow? Conventional current.

Show charge flow in an electrolyte – ions = charged particles

Specification References

2.15 understand that current is the rate of flow of charge

2.16 recall and use the relationship between charge, current and time : charge = current × time

2.17 recall that electric current in solid metallic conductors is a flow of negatively charged electrons

Class act as charges in a circuit. Which way would they move if they were i) positive ii) negative?
Cannot see charges moving in a metal but can observe what happens in a liquid (electrolyte)

Class Practical

Plan and predict: which side to place the 10p. What will be observed? What will the change if you keep the circuit running for longer?
Coating 10pence pieces with copper during electrolysis of CuSO4

Worksheet