2.2  Making measurements and analysing data


2.1.1  Measurements and uncertainties

Learners should be able to demonstrate and apply their knowledge and understanding of:


(a) systematic errors (including zero errors) and random errors in measurements



(b) precision and accuracy As discussed in The Language of Measurement (ASE 2010).



(c) absolute and percentage uncertainties when data are combined by addition, subtraction, multiplication, division and raising to powers.



(d) graphical treatment of errors and uncertainties; line of best fit; worst line; absolute and percentage uncertainties; percentage difference.