Topic 1.2: Measurement and Uncertainties Flashcards Preview

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Flashcards in Topic 1.2: Measurement and Uncertainties Deck (5)
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1

• 1.2.1: State the fundamental units in the SI system.

o Kilogram
o Meter
o Second
o Ampere
o Mole
o kelvin

2

Distinguish between precision and accuracy

o Accuracy refers to the closeness of a measured value to a standard or known value.
o Precision refers to the closeness of two or more measurements to each other.

3

Determine the uncertainties in results
o In addition and subtraction

 Add absolute uncertainties

4

Determine the uncertainties in results o For multiplication, division, and exponents

 Add percentage uncertainties

5

Determine the uncertainties in results o For other functions

 Obtain uncertainty range (subtract highest answer from lowest)