Applications of Electromagnetic Waves | Grade 10 Science DepEd MELC Quarter 2 Module 2
The Learning Bees・2 minutes read
Radiation includes various forms of energy transmission like radio waves for broadcasting, microwaves for communication and cooking, and ultraviolet rays for sterilization, skin health, and detecting counterfeit money. Various types of radiation serve essential purposes in everyday life, from global communication and medical applications to food preparation and security measures.
Insights
- Radio waves, the longest in the electromagnetic spectrum, enable broadcasting by local radio stations through modulation of amplitude or frequency for transmitting sound and images over vast distances.
- Various types of radiation, from microwaves to ultraviolet rays, find diverse applications ranging from satellite communication and radar systems to sterilization, medical diagnosis, and even reducing vitamin D in the skin.
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Recent questions
What is radiation?
Energy transmission through waves or particles.
How are radio waves utilized?
Broadcasting by local radio stations.
What are the applications of microwaves?
Satellite communications, radar systems, and cooking food.
How is infrared radiation used?
Remote controls, medical diagnosis, and night vision goggles.
What are the key uses of ultraviolet rays?
Sterilization, checking signatures, identifying fake banknotes, and reducing vitamin D in the skin.
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Summary
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"Radiation: Waves, Energy, and Communication Technologies"
- Radiation is the transmission of energy through waves or particles, including visible light, ultraviolet light, and radio waves.
- Radio waves, with the longest wavelength in the electromagnetic spectrum, are used for broadcasting by local radio stations.
- Radio waves can be modulated in amplitude or frequency for broadcasting sound and picture information over long distances.
- Communication satellites reflect high-frequency waves back to Earth, allowing global communication.
- Microwaves are used for satellite communications, radar systems, and microwave ovens for cooking food.
- Infrared radiation is used in remote controls, medical diagnosis, and night vision goggles.
- Visible light is crucial for photosynthesis, artificial lighting, and medical uses.
- Ultraviolet rays are used for sterilization, checking signatures, identifying fake banknotes, and reducing vitamin D in the skin.
