Electromagnetic Waves (OCR GCSE Physics A, Combined (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
14 questions from this quiz
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Practise the questions
14 questions from this quiz
What type of waves are electromagnetic waves?
What type of waves are electromagnetic waves?
Transverse waves
At what speed do all EM waves travel through a vacuum?
At what speed do all EM waves travel through a vacuum?
m/s
Which colour has the longest wavelength in visible light?
Which colour has the longest wavelength in visible light?
Red
Which part of the EM spectrum can be detected by the human eye?
Which part of the EM spectrum can be detected by the human eye?
Visible light only
Which has the longest wavelength in the EM spectrum?
Which has the longest wavelength in the EM spectrum?
Radio waves
What allows radio waves to travel long distances around Earth?
What allows radio waves to travel long distances around Earth?
Reflection off ionosphere
How do microwaves heat food?
How do microwaves heat food?
Water molecules absorb energy
Why are microwaves used for satellite communication?
Why are microwaves used for satellite communication?
Pass through atmosphere easily
What are infrared cameras used to check in buildings?
What are infrared cameras used to check in buildings?
Heat losses
What are optical fibres made of?
What are optical fibres made of?
Thin strands of glass
How do energy efficient light bulbs work?
How do energy efficient light bulbs work?
UV converted to visible light
Why are X-rays useful for imaging bones?
Why are X-rays useful for imaging bones?
Absorbed by bones
What happens to frequency as wavelength decreases in EM waves?
What happens to frequency as wavelength decreases in EM waves?
Frequency increases
What happens to energy as frequency increases?
What happens to energy as frequency increases?
Energy increases