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Radio Waves: How It Works?

Radio waves are a type of electromagnetic radiation that travels at the speed of light and are produced both naturally and through man-made technology like radio transmitters. They are used for telecommunication including radio, mobile phones, Wi-Fi, and television by transmitting signals through the air that can be picked up by antennas and interpreted. However, prolonged use of cellphones held up to the head may increase the risk of brain tumors due to exposure to radio waves.

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Portia Ignacio
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181 views1 page

Radio Waves: How It Works?

Radio waves are a type of electromagnetic radiation that travels at the speed of light and are produced both naturally and through man-made technology like radio transmitters. They are used for telecommunication including radio, mobile phones, Wi-Fi, and television by transmitting signals through the air that can be picked up by antennas and interpreted. However, prolonged use of cellphones held up to the head may increase the risk of brain tumors due to exposure to radio waves.

Uploaded by

Portia Ignacio
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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-Putting your cellphone on your ear while

Radio Waves talking to someone over the phone can


cause brain tumor.
-Radio waves are a type of electromagnetic
radiation. How it works?
- It has the longest wavelengths and lowest -With older television, the large antenna on
frequency in the EM spectrum. top of the station would pick up the radio
waves and turn it into visual information on
- Just like all the electromagnetic waves, it the screen. Most modern TV’s use a dish
travels at the speed of light. that picks up the signals through the sky.
-In radio stations, radio waves are picked up
Sources of Radio Waves
by the radio set through the air. Then the
- Their sources are from oscillating circuit radio will interpret the radio waves and
stars. demodulate them. Finally the sound
received will amplify through the speakers.
- Stars and lightning are natural sources of -The most basic form is with cellphone.
radio waves, but these are also produced by When you chat with your friend on the
the antenna on a radio transmitter. cellphone,your phone converts your voice
into electrical energy. By the use of radio
- Many sources of electromagnetic radiation wave, it passes through the cell tower then
come from man-made technology. On the to your friend.
other side of the spectrum, we have
ultraviolet radiation, which is emitted by
black lights and fluorescent lamps. Importance of Radio Waves

Uses - R.W are one of the most important


discoveries humans have ever made when it
- It is used in telecommunication and comes to our ability to communicate with
broadcastings like in radio. one another.

- It allows us to speak through mobile


- It allows us to speak through mobile
phones, use Wi-Fi, and even watch phones, use Wi-Fi, and even watch
television. television. When you turn on the radio in
your vehicle, you’re actually picking up
Effects radio waves that are in the air around you.
-Using cellphones for a long period of time
can cause migraine headache and damage
in your eyes.

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