Difference between revisions of "Calibrate"

Latest revision as of 17:38, 15 November 2019

Calibrating is when a scientist checks an instrument against a known value to see that it reads the correct value.

Calibration is used to correct for a zero error in which an instrument reads the wrong number.

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.

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+====Edexcel====
+:[https://www.amazon.co.uk/gp/product/1292120215/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120215&linkCode=as2&tag=nrjc-21&linkId=8f96ddb76196848bafdb124354e4cf77 ''Calibration, page 112, GCSE Chemistry, Pearson, Edexcel '']
+:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Calibration, page 13, GCSE Physics, CGP, Edexcel '']