University of Port Harcourt Physics Post Utme Past Questions and Answers

Question 6 :

Which of the following is a correct explanation of the inertia of a body?

A. Ability to overcome the earth's gravity
B. Reluctance to stop moving
C. Readiness to start moving
D. Reluctance to start moving and its readiness to stop moving once it has begun to move
E. Reluctance to start moving and its reluctance to stop moving once it has begun to move

Question 7 :

Two masses \(40 \mathrm{~g}\) and \(60 \mathrm{~g}\) are attached firmly to the ends of a light meter rule. The centre of gravity of the system is

A. At the midpoint of the meter rule
B. \(40 \mathrm{~cm}\) from the lighter mass
C. \(40 \mathrm{~cm}\) from the heavier mass
D. \(60 \mathrm{~cm}\) from the heavier mass

Question 8 :

The mode of heat transfer which does not require a material medium is

A. Conduction
B. Radiation
C. Convection
D. Propagation

Question 9 :

When two objects \(P\) and arc supplied with the same quantity of heat, the temperature change in \(P\) is observed to be twice that of \(Q\), the mass of \(P\) is half of \(Q\), the ratio of the specific heat of \(P\) to that of \(Q\) is

A. \(1: 4\)
B. \(4: 1\)
C. \(1: 1\)
D. \(2: 1\)

Question 10 :

Which of the following conditions will make water boil at a temperature of 100 degrees Celsius when the atmospheric pressure is \(750 \mathrm{mmHg}\) ?

A. Increase the external pressure
B. Reduce the external pressure
C. Heat more rapidly at the same pressure
D. Reduce the external pressure by a quarter