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3 cards from this section. Quick, good the night before a test.
What is the definition of uncertainty?
Think about what we lack in measurement that leads us to use the term uncertainty.
How do you add the uncertainties of two measurements?
Recall that you have to square the uncertainties before adding them.
What combines absolute uncertainties when adding measurements?
What happens to errors when we add them up?
True or False: Uncertainty is always a fixed value.
Consider if uncertainty can change.
Calculate the final concentration and uncertainty when combining measured values of 5.0 g/L ± 0.5, 7.5 g/L ± 0.7, using the appropriate propagation method.
Remember to apply the quadrature method correctly.
You have measurements x = 15.0 ± 0.2 and y = 3.0 ± 0.1. If you need to find the area A = x * y, what is the area and its uncertainty?
Focus on how you can apply relative uncertainties in multiplications.
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