1. Parallel Circuits (part 2)
L/O – To know how voltage behaves in a parallel circuit

2. How is a power station like a battery?
Mine = Battery
The mine provides coal which powers the power station
The battery give the electrons the energy
Trucks = Electrons
The trucks carry coal to the power station
The electrons carry electricity around the circuit
Can you use this model to predict what will happen to the VOLTAGE in a parallel circuit?
How would you make this a parallel circuit
Power station = Bulb
The coal allows the power stations to work
The energy carried by the electrons lights the bulb
The empty trucks return to the mine to pick up more coal
The electrons return to the battery to pick up more energy

3. Plan an experiment to test your predictions
Task
Plan an experiment to test your predictions
What happens to the VOLTAGE when you add bulbs into a parallel circuit? V1
Voltmeter
Voltage (V) V1 V2 V3 V2 V3

5. What do you think the problem was with using a series circuit?
Modern Christmas tree lights use parallel circuits instead of series circuits
What do you think the problem was with using a series circuit?
What do you think the advantages of using a parallel circuit are?