Introduction
One of the topics in our year 12 program is electromagnetic waves. In physics that refers to waves which are being carried through the electromagnetic field. It includes radio waves, ultraviolet rays, gamma rays, microwaves and infrared. To find out more, watch the video on electromagnetic waves and pay close attention to the information.
Task
Watch the video and answer the questions provided on the next page!
Process
1. What is the relationship between wave direction and oscillation?
2. How can energy be transported?
3. Can electromagnetic waves move through the vacuum of space?
4. What would happen if the mechanical sound waves could transfer through space?
5. What types of electromagnetic waves are there?
6. What is a transverse wave?
7. Where can electromagnetic waves travel?
8. What happens when we move to high energy gamma rays?
Evaluation
Answers:
1. The oscillation is always perpendicular of the wave direction.
2. As a particle and as a wave
3. Yes
4. We would be able to hear the sound of the sun and it would be 100 decibels.
5. 1) Gamma rays
2) X-Rays
3) Microwave
4) Ultraviolet
5) Infrared
6) Radio
6. Where the oscillation is perpendicular to the movement of the wave.
7. Through the medium and the vaccum
8. Wave length is decreasing but frequency is increasing.
Conclusion
Congratulations! You have gained knowledge on electromagnetic waves!
This video material helped you gain that knowledge on the basics of electromagnetic waves which you can use later on in your studies.
Credits
The video material was taken from www.youtube.com