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Sunday, 16 August 2026
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Physics Past Questions and Answers

Topic: Diffusion

Jamb Physics Questions - Diffusion

Question 16:
The net movement of solvent molecules from a region of high solvent potential to a region of lower solvent potential through a partially or semi permeable membrane is refer to as
  • A Diffusion
  • B Osmosis
  • C Surface tension
  • D Cohesion
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Question 17:
The rate of cooling of a heated quantity of liquid in an enclosure depends on the
  • A Pressure of the liquid
  • B Temperature in the enclosure
  • C Pressure of the enclosure
  • D Volume of the liquid
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Question 18:
The differences observed in solids, liquids and gases may be accounted for by
  • A Their relative masses
  • B Their melting points
  • C The spacing and forces acting between the molecules
  • D The different molecules in each of them
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Question 19:
A solid weighs 45N and 15N respectively in air and water. Determine the relative density of the solid
  • A 0.33
  • B 0.50
  • C 1.50
  • D 3.00
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Question 20:
During the transformation of matter from the solid to the liquid state, the heat supplied does not produce temperature increase because
  • A All the heat is used to break the bonds holding the molecules of the solid together
  • B The heat capacity has become very large as the substance melts
  • C The heat energy is quickly conducted away
  • D The heat gained is equal to the heat lost by the substance
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