Adventure Science: Radio & Electronics Section
Lesson 2: Electromagnetic Energy
Learning Objectives:
- Learn what electromagnetic radiation is
- Learn how electromagnetic radiation is categorized
- Learn why UV radiation is harmful
- Learn about frequency allocation
Watch this video on how technology uses electromagnetic energy:
Here is a comprehensive list of radio frequency communication bands.
Assignment:
Read the first five sections of this article. Stop after reading the “Radio Waves” section.
Quiz Preparation: Short Answer:
- What is electromagnetic radiation?
- What is frequency a measure of?
- What frequency range does “shortwave” fall into?
Short Project:
Study this radio spectrum allocation chart closely. Using it as a guide, draw an electromagnetic spectrum that includes 20 radio communication services within the Medium Frequency, High Frequency and Very High Frequency ranges (you will need to zoom in).