Compare the medical uses of ultrasound and X-rays. Your answer should include the risks, if any, and precautions, if any, associated with the use of ultrasound and X-rays. [6 marks]

For six mark questions, it is important to remember that your quality of written communication will be assessed. This basically means that you're spelling, punctuation, use of terminology and how you form sentences will form part of your mark. Using the right terminology requires you to not use slang or simple terms for things, but to use the physics term. An example of this for this question is using "Causing the creation of cancer cells" instead of "making part of the skin go bad". For the content of the answer of this question. Try writing two paragraphs. One explaining the uses of ultrasound and it's risk and precautions and the other about x-rays in the same way. Points to use for this are as follows. Medical use of X-rays: Detecting bone fractures/Detecting dental problems/Killing cancer cells/CT scanning Risks with X-rays: X-rays cause ionisation that damages the cells, causing cancerous cells. Operator precautions with X-rays: The X-ray operator should go behind a (metal / glass) screen / leave the room when making an X-ray / wear a lead-lined apron Medical use of ultrasound: tissue / musclePre-natal scanning/Imaging (a named body part)/ removal/destruction of kidney/gall stones/removing plaque from teeth Risks with ultrasound: Ultrasound is not ionising it does not damage (human) cells Precautions with ultrasound: The operator needs to take no precautions when making an ultrasound scan.