Resistivity practical questions
Process wire measurements, find resistivity from a resistance–length graph and evaluate uncertainty.
Work with measurements, graphs and experimental data.
GCSE practical guides: methods, results and worked answers
Process wire measurements, find resistivity from a resistance–length graph and evaluate uncertainty.
Use terminal voltage and current data to find emf, internal resistance and load power.
Calculate stress, strain and Young modulus from wire dimensions and force–extension data.
Process repeated timings, find g from squared-time graphs and evaluate timing errors.
Calculate capacitor discharge, interpret log-linear graphs and find capacitance and time constants.
Work with absolute and percentage uncertainty, repeated readings and timing.
Choose when to add absolute uncertainties, add percentages or include powers.
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.
Read voltage amplitude, peak-to-peak voltage, period, frequency and phase difference.
These exercises cover data processing and evaluation for the listed experiments. Carry out practical work with your teacher and follow your laboratory instructions. Your teacher assesses the practical endorsement.