Some of the candidates were unable to:
- read the required values of angles correctly using the protractor
- evaluate the logarithms of the current and voltage correctly
- plot graph of the logarithmic values
- draw correct lines of best fit for graphs
- obtain correct and neat traces of ray diagrams.
- state snell’s law of refraction correctly.
- convert values to S.I units.
- distinguish between the axes
- disregard to instructions e.g. not starting a graph from origin when required to do so;
non-attachment of traces to the answer booklet as in question 2.
- state effect of increase in
x on brightness of the bulb nor reasons for answers given.
The suggested remedies were as follows:
- Physics teachers should endeavour to conduct constant and regular practical classes early enough.
- WAEC should strictly ensure that laboratories are well equipped before schools are accredited to write WASSCE
- Teachers should be encouraged to attend coordination meetings even when they are not invited, so that they can acquire more experience.
- Teachers should ensure that apparatus supplied to candidates are in good conditions.
- Teachers, should give regular drills, exercises in conversion of values, decimal places/significant figures, logarithms.