The Electromagnetic Spectrum (Edexcel GCSE Physics Combined Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 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 of visible light has the longest wavelength?
Which colour of visible light has the longest wavelength?
Red
What happens to frequency as wavelength decreases in EM waves?
What happens to frequency as wavelength decreases in EM waves?
Frequency increases
How do radio waves travel long distances around the Earth?
How do radio waves travel long distances around the Earth?
Reflect off ionosphere
Why do microwaves heat food?
Why do microwaves heat food?
Water molecules absorb energy
What are infrared cameras used for in buildings?
What are infrared cameras used for in buildings?
Check for heat losses
What are optical fibres made from?
What are optical fibres made from?
Thin strands of glass
Why are UV light bulbs more energy-efficient?
Why are UV light bulbs more energy-efficient?
Shorter wavelength of UV light
Why are bones visible on X-ray images?
Why are bones visible on X-ray images?
X-rays are absorbed by bones
What happens to wave energy as frequency increases?
What happens to wave energy as frequency increases?
Energy increases
Do EM waves need a medium to travel through?
Do EM waves need a medium to travel through?
No, they can travel through a vacuum