Contents
Key Stage 2
Meaning
A component is a part of an electrical circuit.
About Components
- Components in a circuit are used to do different jobs.
- The components you should know are:
| Electrical Cell | Wires | Filament Bulb |
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 |
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| A cell makes the electricity flow in a circuit. | Wires are the path for electricity to flow. | A filament bulb lights up when electricity flows through it. |
| Switch | Buzzer | Motor |
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 |
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| A switch can complete or break a circuit to turn it on and off. | A buzzer makes a sound when electricity flows through it. | A motor spins when electricity flows through it. |
Key Stage 3
Meaning
A component is a part of an electrical circuit.
About Components
- Components in a circuit are used to do different jobs.
- The components you should know are:
| Electrical Cell | Wires | Filament Bulb |
| |
|
|
| A cell makes the electricity flow in a circuit. | Wires are the path for electricity to flow. | A filament bulb lights up when electricity flows through it. |
| Switch | Buzzer | Motor |
| |
|
|
| A switch can complete or break a circuit to turn it on and off. | A buzzer makes a sound when electricity flows through it. | A motor spins when electricity flows through it. |
| Resistor | Buzzer | Motor |
 |
 |
 |
| A resistor reduces the flow of current through a circuit. | A Voltmeter is used to measure the Potential Difference between two points on a circuit. | An Ammeter is used to measure the Current passing through part of a circuit. |