Waec Physics 2011 Past Questions and Answers

Question 1:

• WAEC 2011

Which of the following statements is not correct?

A. Molecules of ice, water and water vapour have equal intermolecular distances
B. Molecules of ice, water and water vapour do not differ in the structure of their molecules
C. Molecules of water vapour attract each other with forces far less than the forces of attraction between water molecules
D. Water is less compressible than water vapour

Question 2:

• WAEC 2011

Which of the following statements is not correct?

A. Molecules of ice, water and water vapour have equal intermolecular distances
B. Molecules of ice, water and water vapour do not differ in the structure of their molecules
C. Molecules of water vapour attract each other with forces far less than the forces of attraction between water molecules
D. Water is less compressible than water vapour

Question 3:

• WAEC 2011

The density P of a spherical ball of diameter d and mass m is given by

A. P = \(\frac{3m}{4 \pi d^3}\)
B. P = 4\(\pi md^3\)
C. P = \(\frac{6m}{\pi d^3}\)
D. P = \(\frac{3m}{2 \pi d^3}\)

Question 4:

• WAEC 2011

A metal rod of density 7000 kgm^-3 and cross-sectional area of 0.001257m² has a mass of 1.76kg. Calculate its length.

A. 0.20m
B. 0.25m
C. 0.40m
D. 0.50m

Question 5:

• WAEC 2011

The pressure in a liquid

A. Is the same at all points in the liquid
B. Decreases with depth
C. Is the same in all directions at a given point
D. Is equal to the atmospheric pressure