Curriculum
Course: Igcse Physics
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Curriculum

Igcse Physics

1. Motion, Forces and Energy

0/161 Dr Dabour Hub Science Diagram and Course Material

2. Thermal Physics

0/75 Dr Dabour Hub Science Diagram and Course Material

3. Waves

0/77 Dr Dabour Hub Science Diagram and Course Material

4. Electricity and Magnetism

0/119 Dr Dabour Hub Science Diagram and Course Material

5. Nuclear Physics

0/39 Dr Dabour Hub Science Diagram and Course Material

6. Space Physics

0/47 Dr Dabour Hub Science Diagram and Course Material
Quiz

3.3.3 Dangers of Electromagnetic Waves – Check yourself

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1.
Which EM waves are ionising?
Radio and microwaves
Infrared and visible
Ultraviolet, X-rays and gamma rays
Visible and microwaves
2.
Excessive exposure to UV can cause
internal heating of organs
radiation burns from radio waves
deafness
skin cancer
3.
Radiographers wear lead aprons or stand behind lead screens to
block X-rays
see the image
keep warm
block microwaves
4.
Which wave mainly harms by heating tissue?
Ultraviolet
Gamma rays
Microwaves
X-rays
5.
A person receives 0.3 mSv per hour. After 8 hours the dose is
8.3 mSv
24 mSv
0.0375 mSv
2.4 mSv
6.
Which is the best way to reduce exposure to a gamma source?
Increase distance and use thick shielding
Wear sunglasses
Use a thin cotton cover
Stay close for a short time
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