1. Do now! Can you spell the following words correctly in your book please? Elektricity, elektorns, curent, ameter, volttmeter He’s going to blow! Be careful Good Neutral Excellent MOODOMETER

2. Today’s lesson We’re going to look at how voltage changes in series and parallel circuits. We will also discuss what resistance is and how to calculate it.

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4. Series circuits The voltage of the cell is shared by the lamps 3V 1.5V

5. Series circuits The voltage of the cell is shared by the lamps 3V 1.5V Can you copy this please?

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7. Parallel circuits The voltage across each lamp is equal to the voltage across the cell 2.4 V

8. Parallel circuits The voltage across each lamp is equal to the voltage across the cell 2.4 V Can you copy this please?

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10. Resistance Measures how difficult it is for current to flow. Measured in Ohms (Ω) VA Resistance = voltage ÷ current

11. Can you measure the resistance of a lamp? Build this circuit and use it to find the resistance of the lamp. Design a results table to show your measurements. VA Resistance = voltage ÷ current

12. Let’s try a harder example!