Telecommunications: 5 practice questions

Explaining the operating systems of telephones, radios and TVs mainly involves understanding how they:

1. send and receive signals over a distance
2. only store water
3. only measure temperature
4. only cut materials

Using the operating systems of telecommunication devices to produce models helps pupils to:

1. waste classroom materials
2. understand practically how real devices function
3. avoid learning about technology
4. replace the need for real devices

Using telecommunication devices responsibly includes:

1. using them to spread false information
2. damaging them intentionally
3. respecting others and avoiding misuse
4. ignoring safe and respectful usage

A mobile phone's camera works mainly by:

1. storing only sound
2. measuring only weight
3. producing only heat
4. capturing light to form an image

Which of these best explains why telecommunication tools are useful to society?

1. They allow fast communication over long distances
2. They have no real benefit to communities
3. They only work over very short distances
4. They replace the need for all communication