Physics Practice Test – Structure of Matter and Kinetic Theory (Questions with Answers and Explanations)

Hello and Welcome to Physics Practice Test - Structure of Matter and Kinetic Theory

1. You are to attempt 5 random objectives questions ONLY.
2. Supply Your Full Name and Location in the text box below and begin immediately.
3. You can attempt as many times as possible
1.

Which of these is correct about mercury in a capillary bore? (JAMB 2019)

A. Meniscus is convex and angle of contact is obtuse
B. Meniscus is concave and angle of contact is obtuse
C. Mercury does not wet glass and angle of contact is acute
D. adhesion between the mercury and glass molecules is greater than the cohesion between mercury molecules.

2.

What happens when a gas expands at constant temperature? (JAMB 1997)

A. Its pressure decreases
B. The total momentum of its molecules remains constant
C. Its pressure decrease and the total momentum of molecules remains constant
D. its pressure decreases and the total kinetic of its molecules decrease.

3.

It is observed that water will wet a clean glass because the _________ (JAMB 2009)

A. cohesion of water to glass is stronger than the cohesion of water molecules
B. adhesion of water molecules is weaker than the cohesion of water to glass.
C. cohesion of water to glass is weaker than the cohesion of water molecules.
D. adhesion of water molecules is stronger than the cohesion of water molecules.

4.

Counting of currency notes with moist fingers is based on the principles of _______ (JAMB 2008)

A. diffusion.    B. cohesion.    C. adhesion.    D. viscosity.

5.

One valid assumption of the kinetic theory of is that ______ (1998)

A. the molecules of a gas constantly in a state of motion and the number of collisions remain constant
B. the number of molecules of a gas increases with increasing pressure
C. as the temperature increases, the number of collisions made by the gas molecules remain constant
D. the molecules of a gas are all identical and are very small in size.

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