Physics (Essay) Paper 2 WASSCE (PC), 2022

Weakness and Remedies

 

The following were observed as the candidates’ weaknesses:

  • poor understanding of formulaes and definitions;
  • inability to give applications of LASERS correctly;
  • inability to distinguish correctly the difference between intrinsic and extrinsic semiconductors;
  • inability to handle dimension of quantities;
  • poor knowledge of blackbody, perfect black body concept;
  • poor knowledge of relative humidity, effects of expansion of water  and heat transfer;
  • inability to apply physics principles in explaining the dent of tightly closed container when it is brought out to cool;
  • inability to sketch displacement-time graph of a plane progressive wave, and the resultant wave for two given plane progressive wave y1 and y2;
  • poor handling of calculations on resistivity, capacitance and electric field intensity.

 

Based on the observed weaknesses, the Chief Examiners recommended as follows:

  • qualified physics teachers only, should be considered;
  • use of marking schemes should be encouraged;
  • students should be encouraged on the right approach in solving Mathematical related problems;
  • candidates should practice exercises from recommended textbooks.

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