Chapter 10: Components, switches and circuit symbols

By the end of this chapter you will be able to

• Use the words open and closed for a switch, and say what each one does to a circuit
• Explain why a bulb in a loop with two bulbs in a row is dimmer than a bulb on its own
• Explain the difference in brightness and loudness using voltage and the loop
• Name and draw the circuit symbols for a cell, a battery, a bulb, a switch, a wire and a motor
• Read a circuit diagram, and say whether the bulb will light

You should already know

• Complete circuits, cells and voltage (Chapter 9 of this book)
• Electricity at a simple level, including bulbs, buzzers and switches (Year 4 Science)

Where this leads

• Electrical components in more detail, including resistance, in later science