EM Waves & Atoms (OCR GCSE Physics A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What happens when an electron moves to a higher orbit in an atom?
What happens when an electron moves to a higher orbit in an atom?
The atom absorbs EM radiation
What occurs when an electron falls to a lower orbit in an atom?
What occurs when an electron falls to a lower orbit in an atom?
The atom emits EM radiation
What can happen if an electron gains enough energy?
What can happen if an electron gains enough energy?
It can leave the atom to form an ion
Where do gamma rays originate from?
Where do gamma rays originate from?
Changes in the nucleus of an atom
Which types of EM radiation have hazardous effects on human body tissue?
Which types of EM radiation have hazardous effects on human body tissue?
UV light, X-rays, and gamma rays
What is a hazardous effect of UV light exposure?
What is a hazardous effect of UV light exposure?
Increased risk of skin cancer
How can X-rays and gamma rays cause cancer?
How can X-rays and gamma rays cause cancer?
Ionisation causes gene mutation
Why are radio waves suitable for TV and radio broadcasting?
Why are radio waves suitable for TV and radio broadcasting?
Long wavelength travels far without loss
Why are microwaves used for satellite communication?
Why are microwaves used for satellite communication?
They can penetrate the atmosphere
What does infrared radiation transfer?
What does infrared radiation transfer?
Thermal energy
Why is visible light used in fibre optics?
Why is visible light used in fibre optics?
Best reflection/scattering in glass
What property makes X-rays useful for medical imaging?
What property makes X-rays useful for medical imaging?
Very high energy, penetrates easily