Lesson: Electromagnetic Waves for Communication Physics

Students will be able to

• describe how the motion of electrons in transmitters is associated with the generation of electromagnetic waves,
• describe how long radio waves and how short radio waves interact with Earth’s atmosphere to enable communication beyond line-of-sight distances,
• recall that ground-emitted microwaves can escape Earth’s atmosphere,
• recall that visible light and infrared radiation can be used in optical communication cables.