Transmission medium

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/transmission-medium

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 role?To mediate signal propagation for telecommunication and data transfer
2. What is the distinction in propagation?Mechanical waves require a physical medium; electromagnetic waves can travel through vacuum
3. How can light travel through empty space?Light is an electromagnetic wave, and it can move through the vacuum of space without needing a material like air or water.
4. Why do we use optical fibers for the internet?Optical fibers are made of very pure glass or plastic and carry light pulses, which can travel far with almost no loss and can send a huge amount of data very quickly.

Propagation: The process by which a wave or signal travels through a medium or space.
Modulation: The process of altering a carrier wave to encode information.
Attenuation: The gradual loss of intensity or amplitude of a signal as it travels.
Bandwidth: The maximum rate of data transfer across a given path.