Difference between revisions of "Calibrate"
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: To check a [[thermometer]] is [[calibrate]]d a [[scientist]] could place it in [[boiling]] [[water]] to check that it [[reading|reads]] 100°C and in [[freezing]] [[water]] to check that it [[reading|reads]] 0°C. | : To check a [[thermometer]] is [[calibrate]]d a [[scientist]] could place it in [[boiling]] [[water]] to check that it [[reading|reads]] 100°C and in [[freezing]] [[water]] to check that it [[reading|reads]] 0°C. | ||
: To check an [[Analogue Ammeter|analogue ammeter]] is [[calibrate]]d the dial can be [[reading|read]] before a [[Electrical Current|current]] is passed through it to see that it says zero. | : To check an [[Analogue Ammeter|analogue ammeter]] is [[calibrate]]d the dial can be [[reading|read]] before a [[Electrical Current|current]] is passed through it to see that it says zero. | ||
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| + | ===References=== | ||
| + | ====AQA==== | ||
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| + | :[https://www.amazon.co.uk/gp/product/1782945954/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945954&linkCode=as2&tag=nrjc-21&linkId=100574c08fbbb64318256eb79ed61a76 ''Calibration, page 13, GCSE Biology, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782946381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946381&linkCode=as2&tag=nrjc-21&linkId=5ec5fc3f6429e30c1d9ab9bca2bccf93 ''Calibration, page 13, GCSE Combined Science Trilogy; Biology, CGP, 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 ''Calibration, pages 64, 65, GCSE Physics, Hodder, AQA ''] | ||
Revision as of 16:01, 2 November 2019
Key Stage 4
Meaning
Calibrating is when a scientist checks an instrument against a known value to see that it reads the correct value.
About Calibration
- Calibration is used to correct for a zero error in which an instrument reads the wrong number.
Examples
- To check a thermometer is calibrated a scientist could place it in boiling water to check that it reads 100°C and in freezing water to check that it reads 0°C.
- To check an analogue ammeter is calibrated the dial can be read before a current is passed through it to see that it says zero.