P5 Electrical Systems (5R4)

An electrical circuit is made up of...

• an electrical system like a computer

• electrical parts like bulb, wire, battery

• an open and close circuit with wires

• electricity that flows through the wires

A battery is a source of _______ and is important in an electric circuit.

• power

• energy

• light

• heat

A battery has 2 ends called __________ and ___________ end.

• up, down

• north, south

• open, close

• positive, negative

Which of these is NOT a part of the bulb?

• glass bulb

• metal filament

• metal tip

• copper connector

John just bought a new torchlight and he put in 2 new batteries. However, it does not work. Which of the following could be a possible reason why the torch does not work?

• the bulb has fused

• the wires are not connected properly

• the batteries are placed wrongly

Which of these parts can be put together to form an electric circuit?

• 2 switches, 1 bulb and 1 battery

• 2 batteries, 1 bulb and 2 wires

• 1 battery, 1 switch, 2 bulbs

• 3 bulb, 2 wires, 1 battery

The diagrams below show 4 electrical circuits. The battery and bulb used in each circuit are identical and in working condition. In which one of the circuits will the bulb light up?

• Option 1

• Option 2

• Option 3

• Option 4

What do you call a circuit with a gap?

• False circuit

• Closed circuit

• Open circuit

• True circuit

Which of these objects can electricity pass through it?

• Eraser

• Glass Marble

• Ice-cream stick

• Paper clip

Wires are usually covered with ______ to protect people from electric shock.

• copper

• rubber

• aluminium

• plastic