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Wednesday, 17 June 2026
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Physics Past Questions and Answers

Waec Physics Questions

Question 1036:
WAEC 2005
Water falls through a height of 50m. Determine the temperature rise at the bottom of the fall. [Neglect energy losses. Specific heat capacity of water = 4200Jkg-1 K-1, g = 10ms2]
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  • A 0.119oC
  • B 0.840oC
  • C 1.190oC
  • D 8.400oC
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Question 1037:
WAEC 2005
The energy required to change a solid to liquid at constant temperature is called
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  • A Thermal capacity
  • B Has lower specific heat capacity
  • C Latent heat of fusion
  • D Latent heat of vaporisation
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Question 1038:
WAEC 2005
Which of the following statements about boiling and evaporation at atmospheric pressure is correct?
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  • A Evaporation and boiling of water take place at 100o
  • B Evaporation of water takes place at a temperature greater than 100oC, while boiling takes place at 100oC
  • C Evaporation of water takes place at 100oC while boiling takes place at a higher temperature
  • D Boiling takes place at 100o while evaporation my take place at temperatures lower than 100oC
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Question 1039:
WAEC 2005
Which of the following statements is correct?
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  • A The density of a liquid decreases when it expands
  • B The density of a liquid increases when the liquids are heated
  • C The real expansivity of a liquid is less than its apparent expansivity
  • D A liquid changes to solid when heated to a sufficiently high temperature
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Question 1040:
WAEC 2005
The pressure exerted by a given mass of gas in a container
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  • A Decreases if the container is heated
  • B Increases if the molecules of the gas move faster
  • C Increases if the container is doubled
  • D Decreases as the kinetic energy of the gas molecules inceases
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