Likely 2023 WASSCE Physics Questions To Try Your Hands On

2023 WASSCE is fast approaching and candidates are getting eager and eager ahead of the examination.

These are likely well-analyzed Physics questions that may drop in the 2023 WASSCE.

1. Explain why mercury does not wet glass while water does.

2. (a) State Faraday’s second law of electrolysis.

(b) An electric charge of 9.6 x 104 C liberates 1 mole of substance containing 6.0 x 1023 atoms.  Determine the value of the electronic charge.

3. State: the difference between plane polarized light and ordinary light and state two uses of Polaroids.

4. (a) State Faraday’s second law of electrolysis.

(b) An electric charge of 9.6 x 104 C liberates 1 mole of substance containing 6.0 x 1023 atoms. Determine the value of the electronic charge.

5. Explain the following terms:

(a) tensile stress;

(b) Young’s modulus.

6. (a) Define diffusion.

(b) State two applications of electrical conduction through gases.

7. (a) List two properties of cathode rays.

(b) Explain how the intensity and energy of cathode rays may be increased.

8. Give three observations in support of de Broglie’s assumption that moving particles behave like waves.

12. (a) i. State two advantages of alcohol over mercury as a thermometric liquid.

ii. When the bulb of a thermometer is placed in a beaker of hot water, the level of mercury first falls and then rises gradually. Explain this observation.

(b) List two factors, other than temperature, that affect the rate of evaporation of a liquid.

(c) A block of lead of mass 100kg in a crucible and at a temperature of 40oC was placed in an electric furnace rated 10kW. If the melting point of lead is 320oC, calculate the:

(i) quantity of heat required to heat the lead to its melting point;

(ii) additional heat energy required to melt the lead;

(iii) time is taken to supply this additional energy. (Specific heat capacity of lead = 120JKg-1 K-1; Specific latent heat of fusion of lead = 2.5 x 104 JK-1)

(d) State two precautions necessary in an experiment to determine the specific latent heat of vaporization of water.

13. (a) State two factors that affect the angle of deviation of a ray of light through a triangular glass prism.

(b) Seven virtual images of an object are formed when two plane mirrors are inclined at an angle 0 to each other. Calculate the value of 0.

(c) By means of a ripple tank, a student was able to generate a series of transverse waves by varying the frequency of the dipper, and all the waves so generated covered a distance of 0.80 m in 0.2 s.

(i) Determine the speed, v, of the waves

(ii) Copy and complete the table given above in your answer booklet.

(iii) Plot a graph with f on the vertical axis and h -1 on the horizontal axis.

(iv) What does the slope of the graph represent?

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