Chapter 1
Physical quantities and measurement
A measurement needs a clear meaning.
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Physical quantities and units
Give a measurement meaning and use the specified SI base units.
Prefixes and physical scales
Convert units and check whether the size of an answer is reasonable.
Choosing measuring instruments
Compare range and resolution to choose a suitable instrument.
Making useful measurements
Read scales, correct zero errors, time repeated events and measure volume.
Practical skills: tables, graphs and errors
Record readings to the right precision, draw tables and graphs the way they are marked, and explain errors.
Planning an experiment
Write a full plan: variables, procedure, table, graph, conclusion and safety, with a worked plan.
Scalars and vectors
Distinguish a magnitude from a quantity that also needs direction.
Adding vectors with a scale drawing
Draw two vectors head to tail and measure their resultant.