Radio Waves (OCR GCSE Physics A, Combined (Gateway Science Suite)): Quizzes
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Practise the questions
10 questions from this quiz
What type of wavelength do radio waves have in the electromagnetic spectrum?
What type of wavelength do radio waves have in the electromagnetic spectrum?
The longest wavelength
What type of frequency do radio waves have in the electromagnetic spectrum?
What type of frequency do radio waves have in the electromagnetic spectrum?
The lowest frequency
How are radio waves generated?
How are radio waves generated?
By oscillations in electrical circuits
What causes electrons to oscillate when producing radio waves?
What causes electrons to oscillate when producing radio waves?
An alternating current (AC) in an antenna
What happens when radio waves are absorbed by a conductor such as an antenna?
What happens when radio waves are absorbed by a conductor such as an antenna?
They induce an alternating current (AC)
What is the frequency of the AC induced when radio waves are absorbed by an antenna?
What is the frequency of the AC induced when radio waves are absorbed by an antenna?
Same frequency as the incoming waves
Which technologies widely use radio waves?
Which technologies widely use radio waves?
Communication technologies
Which is an example of a communication technology that uses radio waves?
Which is an example of a communication technology that uses radio waves?
Mobile phones
Why are radio waves suitable for communication over long distances?
Why are radio waves suitable for communication over long distances?
They can travel long distances
What can radio waves penetrate through?
What can radio waves penetrate through?
Walls and buildings