1For what purposes do you use magazines, radio, television, telephone, fax, mobile phone, Wi-Fi, email, internet and GPS in daily life?
2Why does radio reach more people than newspapers and magazines?
3Explain in order how a telephone works.
4What is fax, and how does it send information?
5What is the main difference between a home telephone and a mobile phone?
6What is the internet? Give four of its uses.
7What does Wi-Fi stand for, and how does it work?
8Why is email called a reliable means of modern communication?
9How does a GPS device find its location, and why is one satellite not enough?
10Give five uses of GPS, and name two navigation systems of other countries.