CurriculumVisions

1. READ/play the text
2. CLICK the picture (and video)
3. TRY this:

Q1: What happens when we flick the switch?

[Answer]

An electrical current flows when we make up a circuit properly. But this would soon run down the battery, so it is useful to have a means of controlling when the current flows.

We control the current using a switch.

A switch simply disconnects one of the wires. It is an easy way to make and break a circuit.

Switches

Screen 2/10

1. READ/play the text
2. CLICK the picture (and video)
3. TRY this:

Q1: What happens when we flick the switch?

[Answer]

Switches

Screen 2/10

1. READ/play the text 2. CLICK the picture (and video) 3. TRY this: Q1: What happens when we flick the switch? [Answer]

1. READ/play the text
2. CLICK the picture (and video)
3. TRY this:

Q1: What happens when we flick the switch?

[Answer]