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STP Waves and Rad 39 cards
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Waves and moves energy from one place to another.
They all travel at the smae speed through a vacuum (space).
Gamma rays, X-rays, ultra violet rays visible light, infra red rays, microwaves and radio waves.
Reflected, absorbed, transmitted.
Radio waves, microwaves, infra red waves and visible light.
The substance heats up and may create an a.c. current with the same frequency as radiation.
Ultra violet rays, X-rays and gamma rays.
Kill cancer, sterilise surgical instruments, kill harmful bacteria in food.
Take radiographs to look for broken bones (the X-ray is absorbed by dense bone). Treat some cancers.
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