Wireless

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/wireless

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the fundamental principle?Information transfer without a continuous physical medium, often via electromagnetic waves
2. What is the key enabling technologies?Cellular networks, Wi-Fi, Bluetooth, satellite communication, GPS
3. What is wireless communication?Wireless communication sends messages through the air using electromagnetic waves, so you don't need wires.
4. How does a wireless signal travel from one device to another?A device encodes information onto a radio wave, sends it through an antenna, and another antenna receives it and decodes the message.

Electromagnetic Spectrum: The entire range of electromagnetic radiation, including radio waves, microwaves, visible light, and X-rays.
Modulation/Demodulation: Processes of encoding information onto a carrier wave and extracting it at the receiver.
Bandwidth: The maximum rate of data transfer across a given path, often related to the frequency range used.