Grade 5 Science Summative Term 2

Three lamps are connected side-by-side so that the current is shared between them. We call this connected in ...

• Parallel

• Series

• A loop

Lamps in your house are often connected in parallel. This is a good idea because:

• They are cheaper.

• We can switch them off separately.

• The lights are dimmer.

Why is plastic used to cover electrical wires?

• Because it is a conductor.

• Because it keeps them neat.

• Because it is an insulator.

The light bulb will not glow in this circuit, because

• It needs more cells.

• The circuit is open.

• The current is flowing in the circuit.

How could you make the lamps brighter?

• Add another battery.

• Add longer wires.

• Add more bulbs.

If one component fails in a parallel circuit the whole circuit will fail.

• TRUE

• FALSE

The graphite in your pencil and seawater are insulators.

• True

• False

Mains electricity powers large appliances like refrigerators.

• True

• False

A parallel circuit has more than one pathway for electricity to flow.

• False

• True

Electric current is the flow of electric charges through a circuit.

• True

• False