Measurement and graphs questions and practice

Read instruments, convert units, and interpret gradients and uncertainty.

Units, prefixes and standard form

Convert prefixes, squared and cubed units. Write numbers in standard form.

Work with absolute and percentage uncertainty, repeated readings and timing.

Choose when to add absolute uncertainties, add percentages or include powers.

Choose an equation, rearrange it and convert the units before calculating.

Read scales, plot points and use gradients and intercepts in Physics.

Check limiting lines against error bars, then find absolute and percentage uncertainty.

Read the sleeve and thimble, correct zero errors and record measurements.

Read main and vernier scales, correct signed zero errors and find resolution.

Start with units and equations, then choose the measurement or graph skill your question needs.

Selected AQA 7408 and OCR A H556 skills. Each resource states its exact scope.