1.2.7 Distinguish between precision and accuracy

1.1.1 State and compare quantities to the nearest order of magnitude.

1.1.2 State the ranges of magnitude of distances, masses and times that occur in the universe

1.1.3 State ratios of quantities as differences of orders of magnitude

1.1.4 Estimate approximate values of everyday quantities to one or two significant figures

1.2.1 State the fundamental units in the SI system

1.2.2 Distinguish between fundamental and derived units and give examples of derived units

1.2.3 Convert between different units of quantities

1.2.4 State units in the accepted SI format

1.2.5 State values in scientific notation in multiple of units with appropriate units

1.2.6 Describe and give examples of random and systematic errors

1.2.7 Distinguish between precision and accuracy

1.2.8 Explain how the effects of random errors may be reduced