Radio Waves - GCSE Physics (9-1) | kayscience.com

Radio waves are mainly used for TV and radio signals. Radio waves are sent out by transmitters and received by TV and radio receivers.

Long-wave radio signals can travel long distances because they diffract around the curvature of the Earth, around tall buildings and around hills.

Short-wave radio signals can also travel long distances but they don’t diffract around the curvature of the Earth. Instead short-wave radio wave signals reflect off the ionosphere and then back down to Earth and back up to the ionosphere.

TV and FM ariel receivers must be in the line of sight of the signal transmitter.
TV and FM signals don’t diffract around hills or tall buildings.

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[jpmx]

Not sure why you have to repeat everything 4 times. Either way this was informative. Thank you.

[robertzhu]

Great video, really helped me understand.

Great video, really helped me understand.

Great video, really helped me understand.

[juanmuniz]

Wow thanks for this info extremely informative, great work man.

[jackbradley]

Great video thanks.
Great video thanks.

[JojoJojo-fghr]

Which is the longest in distance sw or lw

[nataliee]

I am guessing this is manmade frequencies and not natural frequencies. I am guessing because you did not differentiate. Big difference.

[Scotian]

I’m really sorry but you got this so wrong. Reach out if you would like to talk about it and I can help you understand this subject better.