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Sin título

Amal Khlafa Inglés 9 fichas

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  1. 1what kind of waves are x raystransverse
  2. 2are x-rays short or long wave lengths?short
  3. 3what frequency are x-rays?high frequency
  4. 4basics of x-rayshigh energy this means they are ionising and can knock electrons on or off atoms creating ions
  5. 5What makes x-rays dangerous?They are ionising
    this increases the risk of cancer
  6. 6X-Rays affect photographic film in the same way as light- X-Rays are absorbed by bone and metal (turns images white)
    - X-Rays are transmitted by soft tissue like muscle
    - This is shown in x-ray images because they turn grey as some x-ray is let in but not all
  7. 7MEDICAL USES OF X-RAY- visualising bone fractures and dental problems
    - killing cancer cells
  8. 8PRECAUTIONS OF USING X-RAYS- X-Rays are ionising and can cause mutations which increase the risk of cancer therefore you need to limit the exposure time.
  9. 9PRECAUTIONS OF USING X-RAYS how?people working with x-rays normally go behind a lead screen as lead absorbs x-ray radiation
    or they wear lead aprons

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Fichas sobre Sin título, creado por Amal Khlafa el 26/01/2016.
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Amal Khlafa
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