Radio Waves (AQA GCSE Physics Combined Science): Quizzes
📚Quizzes
Practise the questions
9 questions from this quiz
ShowHide
Practise the questions
9 questions from this quiz
What is the wavelength of radio waves compared to other electromagnetic waves?
What is the wavelength of radio waves compared to other electromagnetic waves?
Longest wavelength
What is the frequency of radio waves compared to other electromagnetic waves?
What is the frequency of radio waves compared to other electromagnetic waves?
Lowest frequency
How are radio waves generated?
How are radio waves generated?
By oscillations in electrical circuits
What happens when alternating current is applied to an antenna?
What happens when alternating current is applied to an antenna?
Electrons oscillate and generate radio waves
What happens when radio waves are absorbed by a conductor like an antenna?
What happens when radio waves are absorbed by a conductor like an antenna?
They induce an alternating current
What is the frequency of the induced AC compared to the incoming radio waves?
What is the frequency of the induced AC compared to the incoming radio waves?
The same frequency
Which technologies use radio waves?
Which technologies use radio waves?
Broadcasting, mobile phones, networks
Why are radio waves suitable for communication technologies?
Why are radio waves suitable for communication technologies?
They can travel long distances
What can radio waves penetrate through?
What can radio waves penetrate through?
Various materials like walls & buildings