Radio Waves (AQA GCSE Physics Combined Science): Flashcards
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Practise the cards
11 cards from this deck
What type of wave are radio waves?
What type of wave are radio waves?
Electromagnetic wave
Wavelength of radio waves in EM spectrum
Wavelength of radio waves in EM spectrum
Longest wavelength
Frequency of radio waves in EM spectrum
Frequency of radio waves in EM spectrum
Lowest frequency
How are radio waves generated?
How are radio waves generated?
By oscillations in electrical circuits
What does AC in an antenna cause?
What does AC in an antenna cause?
Electrons to oscillate, generating radio waves
What do radio waves induce when absorbed by a conductor?
What do radio waves induce when absorbed by a conductor?
Alternating current (AC)
Frequency of induced AC compared to incoming radio waves
Frequency of induced AC compared to incoming radio waves
Same frequency
Main application of radio waves
Main application of radio waves
Communication technologies
Examples of radio wave uses
Examples of radio wave uses
Broadcasting, mobile phones, wireless networks
What is the distance capability of radio waves?
What is the distance capability of radio waves?
Can travel long distances
What is the material penetration ability of radio waves?
What is the material penetration ability of radio waves?
Can penetrate walls and buildings