Radio Waves (OCR GCSE Physics A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
9 questions from this quiz
ShowHide
Practise the questions
9 questions from this quiz
What property of radio waves distinguishes them in the electromagnetic spectrum?
What property of radio waves distinguishes them in the electromagnetic spectrum?
Longest wavelength
What is true about radio waves' frequency in the electromagnetic spectrum?
What is true about radio waves' frequency in the electromagnetic spectrum?
They have the 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, generating radio waves
What occurs when radio waves are absorbed by a conductor like an antenna?
What occurs when radio waves are absorbed by a conductor like an antenna?
An alternating current is induced
What is the frequency of the induced AC compared to the absorbed radio waves?
What is the frequency of the induced AC compared to the absorbed radio waves?
The same frequency
In which technologies are radio waves widely used?
In which technologies are radio waves widely used?
Communication technologies
Which of these is an example of radio wave use in communication?
Which of these is an example of radio wave use in communication?
Mobile phones
What property makes radio waves useful for communication in buildings?
What property makes radio waves useful for communication in buildings?
They penetrate walls and buildings