Archimedes' principle and law of floatation and applications - Jamb Physics Past Questions and Answers

Question 6:

• JAMB 1995

A piece of wood floats inside water at room temperature with a fraction of it above the liquid surface. As the temperature of the water is raised, the part of the wood above the liquid will

A. Decrease because the density of water decreases with temperature
B. Increase because the density of water decreases with temperature
C. Decreases because the density of water increases with water temperature
D. Increase because the density of water increases with temperature

Question 7:

• JAMB 2000

When a ship sails from salt water into fresh water, the fraction of its volume above the water surface will

A. Increase
B. Decrease
C. Remain the same
D. Increase then decrease

Question 8:

• JAMB 2000

When a ship sails from salt water into fresh water, the fraction of its volume above the water surface will

A. Increase
B. Decrease
C. Remain the same
D. Increase then decrease

Question 9:

• JAMB 2010

A hydrometer is an instrument used in measuring

A. Vapour pressure of a fluid
B. Density of liquid
C. Relative humidity of a liquid
D. Relative density of a liquid

Question 10:

• JAMB 2010

A hydrometer is an instrument used in measuring

A. Vapour pressure of a fluid
B. Density of liquid
C. Relative humidity of a liquid
D. Relative density of a liquid