Structure of Matter and Kinetic Theory - Jamb Physics Past Questions and Answers

Question 16:

• JAMB 2002

blowing air over a liquid aids evaporation by

A. Increasing its surface area
B. Decreasing its vapour pressure
C. Increasing its temperature
D. Decreasing its density

Question 17:

• JAMB 2002

The colours seen on soap bubbles are due to

A. Diffraction
B. Refraction
C. Dispersion
D. Interference

Question 18:

• JAMB 2003

Water does not drop through an open umbrella of silk materials unless the inside of the umbrella is touched. This is due to

A. Capilarity
B. Osmotic pressure
C. Viscosity
D. Surface tension

Question 19:

• JAMB 2003

The phenomenon where by the water droplets in the atmosphere combines with dust particles in the air to reduce visibility is

A. Cloud
B. Mist
C. Hail
D. Fog

Question 20:

• JAMB 2005

The process whereby the molecules of different substances move randomly is called?

A. Capillarity
B. Surface tension
C. Osmosis
D. Diffusion