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Flashcards in The basics Deck (8)
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1

Homogenous equations must have...

the same magnitude and unit on both sides. E.g. 5s=5s

2

Error is...

the difference between the measured value and the 'true value'.

3

Uncertainty is...

quantification of the doubt about the measurement result or the precision of the instrument.

4

Absolute uncertainty:

-the precision of the measuring instrument
-half the range of a set of repeated readings

5

If the reading is constant when repeated...

the precision of the measurement is the precision of the measuring instrument.

6

Random error is when...

repeating the measurement gives a randomly different result.

7

Systematic error is where...

the same influence affects the result for each of the repeated readings. E.g. 0 error

8

Ratchet on the micrometer is...

used to close the micrometer.