This Self-Learning Module (SLM) is prepared so that you, our dear learners, can continue your studies and learn while at home. Activities, questions, directions, exercises, and discussions are carefully stated for you to understand each lesson.
The SLM is composed of different parts. Each part shall guide you step-by-step as you discover and understand the lesson prepared for you.
Pretest is provided to measure your prior knowledge on lessons in each SLM. This will tell you if you need to proceed on completing this module or if you need to ask your facilitator or your teacher’s assistance for better understanding of the lesson. At the end of each module, you need to answer the posttest to self-check your learning. Answer Key is provided for each activity and test. We trust that you will be honest in using these.
Please use this module with care. Do not put unnecessary marks on any part of this SLM. Use a separate sheet of paper in answering the exercises and tests. And read the instructions carefully before performing each task.
If you have any questions in using this SLM or any difficulty in answering the tasks in this module, do not hesitate to consult your teacher or facilitator.
Are you not wondering how you are able to communicate with your loved ones from far places? How were you able to listen to music from your radio? Or how your television remote control works?
Most of the things we use nowadays are applications of our knowledge about Electromagnetic (EM) waves. We may not see these EM waves, but we encounter their different forms in our daily life. You know more of these waves than you may think.
This module contains various activities and tasks to be accomplished which will give you more understanding on the significance and effects of electromagnetic waves.
At the end of this module you will be able to:
1. cite examples of practical applications of the different regions of EM waves, such as the use of radio waves in telecommunication;
2. explain the effects of electromagnetic radiation on living things and the environment.