Switches | Science | Quizalize & Oak National Academy

Starter quiz

Who should investigate problems with electricity and electrical appliances?
- anyone
- any adult
- a mechanic
- an electrician ✓
Which of these rules should you follow when using electricity and electrical appliances?
- Use electrical appliances in bathrooms.
- Leave plug sockets off when not in use. ✓
- Keep electrical cables tidy. ✓
- Keep a drink near appliances to stay hydrated.
Why won’t this circuit work?
- the wires are broken
- the wires are both connected to the same end of the cell ✓
- the bulb is connected the wrong way round
What do you call an electrical circuit where all the components are correctly connected and there are no gaps in the loop?
- looped
- total
- complete ✓
- whole
What is a device?
- a component which supplies power to a circuit
- a component which links other components in a circuit
- a component that needs electricity to work and is made for a particular purpose ✓
Which of these circuits won’t work because the buzzer is connected the wrong way?
- A. The positive connector is connected closest to the positive end of the cell.
- B. The negative connector is connected closest to the positive end of the cell. ✓
- C. Both wires are connected to the same end of the cell.
- D. There is no wire connecting the buzzer's negative connector to the cell.

______ are used to control circuits.
- 'Switches' ✓
Switches can break ______ by making a space between components where the electricity cannot flow.
- a circuit ✓
- an appliance
- a bulb
Which of these components could switches turn on and off?
- cell
- wire
- bulb ✓
- buzzer ✓
Which of these are types of switches?
- arm
- slide ✓
- push button ✓
- wobble
Switches are used to control many electrical ______ we use everyday.
- 'appliances' ✓
What types of switch are shown on this clock radio?
- toggle
- slide ✓
- reed
- push button

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Switches are used to control circuits.
Switches can break a circuit by making a space between components where the electricity cannot flow.
Switches are used to turn bulbs, buzzers and motors on and off.
Different types of switches are used to control many electrical appliances we use everyday.

All electrical appliances and circuits use the same type of switch.

Children will be introduced to a wide range of switches.

Switch - A switch is part of an electrical circuit than can stop or allow electricity to flow.
Control variable - Control variables are variables that are kept the same throughout an investigation.
Circuit - An electrical circuit is a closed loop or path that electricity can flow through to make a component work.
Complete - A complete electrical circuit is made when all components are connected together correctly and there are no breaks in the circuit.
Incomplete - An incomplete electrical circuit is made when the components are not connected together correctly or there are breaks in the circuit.