Introduction
As mentioned in the classroom, electromagnetics waves are all around us.
Electromagnetic waves are propagating waves that travel in space with both electric and magnetic components. These components oscillate at right angles to each other and to the direction of propagation.
Electromagnetic waves carry energy and momentum which may be given when they interact with matter.
Electromagnetic waves comprise of a series of waves whose frequencies and wavelengths extend over a broad range.
Task
Get into groups of 4-5 students. A type of wave will be allocated to you.
Using resources from the next page and your textbooks, discuss and plan out a powerpoint slide to describe the characteristics of the wave, and the applications in various fields. The presentation template slides are provided in your Moodle drive. You are given 25 minutes to complete this task.
After compiling the information, your group will need to present your findings to the class.
Process
You are being split into 7 groups, and each group will take each type of waves below. You are to, using the resources provided below, find out the characteristics of the waves (wavelength, frequency, features) and the application of each type of waves in the real world.
Group 1 - Radio waves
https://www.miniphysics.com/application-of-radio-waves.html
Group 2 - Microwaves
https://www.miniphysics.com/application-of-microwaves.html
Group 3 - Infrared
https://www.miniphysics.com/application-of-infra-red-waves.html
Group 4 - Visible light
https://www.miniphysics.com/application-of-light.html
Group 5 - Ultraviolet raditation
https://www.miniphysics.com/application-of-ultra-violet.html
Group 6 - X-ray
https://www.miniphysics.com/application-of-x-rays.html
Group 7 - Gamma ray
https://www.miniphysics.com/application-of-gamma-rays.html
Evaluation
This is how your group will be evaluated. Maximum Score = 20 marks.
| Beginning 1 |
Developing 2 |
Qualified 3 |
Exemplary 4 |
Score |
|
|---|---|---|---|---|---|
| Characteristics of the waves | . | ||||
| Applications of the waves | |||||
| Worked Example | |||||
| PPT Design | |||||
| Presentation | |||||
| Total Score |
Conclusion
EM waves spans across a very broad spectrum. We apply this in many fields. That's why it's important to learn. :)
Credits
Me, myself and I.
Mr Wangyal - for giving this task
The rest of the ICT class - for being nice and entertaining :)