Difference between revisions of "Ultrasound"
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: [[Ultrasound]] is generally used to detect cracks in large [[metal]] structures. | : [[Ultrasound]] is generally used to detect cracks in large [[metal]] structures. | ||
: [[Ultrasound]] is used in hospitals to create images of [[organ]]s and of the [[foetus]] of [[pregnant]] [[female]]s. | : [[Ultrasound]] is used in hospitals to create images of [[organ]]s and of the [[foetus]] of [[pregnant]] [[female]]s. | ||
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| + | ===References=== | ||
| + | ====AQA==== | ||
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| + | :[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac469 ''Ultrasound, page 89, 90, GCSE Physics; The Revision Guide, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Ultrasound, pages 190, 199, 208-9, GCSE Physics; Student Book, Collins, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Ultrasound, pages 191-2, GCSE Physics, Hodder, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Ultrasound, pages 282, 283, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA ''] | ||
Revision as of 15:20, 14 November 2019
Contents
Key Stage 3
Meaning
Ultrasound is sound that has a frequency higher than 20,000Hz.
About Ultrasound
- Ultrasound is too high pitched for a human to hear.
Applications
- Cleaning - Ultrasound can be used to clean dirt from surfaces. The vibrations can create small bubbles in a water which work their way into cracks push the dirt out.
- Physiotherapy - The vibration from ultrasound can be used to massage parts of the body which can stimulate healing and repair.
Key Stage 4
Meaning
Ultrasound is sound that has a frequency higher than 20,000Hz.
About Ultrasound
- Ultrasound is any sound which is too high pitched to hear. Since the lowest frequency a human can hear 20,000Hz, then ultrasound is any sound above that.
Applications
Ultrasound Imaging
- Ultrasound can be reflected, refracted or absorbed at the interface between different media. This can be used, along with a computer, to create images of the internal structure of an object. This is particularly useful for opaque object.
- Ultrasound is generally used to detect cracks in large metal structures.
- Ultrasound is used in hospitals to create images of organs and of the foetus of pregnant females.