Technology · Topic 41 of 59

Wi-Fi

Wi-Fi uses radio waves to send data between devices and a router, so they can connect to the internet without cables. Its range is limited by walls and distance.

💡 Fun fact

Wi-Fi was invented partly by a team that was studying black holes.

All about Wi-Fi

Wi-Fi uses radio waves to send data between devices and a router, so devices can connect to the internet without cables. Walls and distance can limit its range.

Many homes, schools and cafes use Wi-Fi.

🎮 Try it yourself!

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Real-life uses of Wi-Fi

Connecting tablets to the internet
Streaming videos
Joining online lessons

Frequently asked questions about Wi-Fi

What does Wi-Fi use to send data?

Radio waves.

What limits Wi-Fi range?

Walls and distance.