Flashcards
Sem título
Flashcards do conjunto (8)
- 1The electromagnetic spectrum
- 2radio wavesThese are used to transmit radio signals. They can 1 Km in wavelength
- 3Micro wavesThese are a few centimetres in length. They are used for cooking food and satellite transmitting.
- 4Infrared wavesthese are given as heaters and can be used at night as vision equipment.
- 5Visible lightThese are uses in photographic images and in fibre optic cables.
- 6ultra violetProduced by fluorescent lamps and can be used for security markings can be on money.
- 7X-raysProduced by an X-ray tube used for observing internal structure of humans (Checking for broken bones).
- 8Gamma raysThese are produced by some radioactive materials and can be used to sterilise medical equipment.
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- FlashCards sobre Sem título, criado por Elliott Martin-Drew em 19-05-2018.
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- Elliott Martin-Drew
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