Post Utme Physics Past Questions and Answers

Question 1086:

The surface tension of water can be reduced by adding the following except ____________

A. Detergent
B. Oil
C. Grease
D. Sand

Question 1087:

Which of the following is not a Newton's law of motion?

A. The time rate of change of linear momentum is directly proportional to the external force applied and it takes place in the direction of the force.
B. In the absence of external forces, an object at rest remains at rest and an object in motion continues in motion with \& constant velocity.
C. If two objects interact, the force, \(F_{12}\) exerted by object 1 on object 2 is equal in magnitude and opposite in direction to the force, \(F_{21}\) exerted by object 2 on object 1
D. The force required to stretch or compress a spring is directly proportional to the extension or compression, provided that the elastic limit is not exceed.

Question 1088:

Which of the following statements is true about collision event?

A. In elastic collision, both linear momentum and kinetic energy are conserved
B. In elastic collision, linear momentum is conserved but the kinetic energy is not conserved
C. In inelastic collision, both linear momentum and kinetic energy are conserved.
D. In inelastic collision, kinetic energy is conserved but the linear momentum is not conserved

Question 1089:

A force of \(10 N\) is applied to a spring of elastic spring constant of \(200 N / m\). Calculate the energy stored in the spring.

A. 2.50J
B. \(0.25 J\)
C. \(400 J\)
D. \(40.0 J\)

Question 1090:

Which of the following statements is not true about the properties of pressure in a liquid? Pressure ____________

A. At any point in a liquid is at right angle in all directions.
B. Is the same at all points on the same horizontal plane in a liquid.
C. Decreases with height, and independent of shape and volume of the container.
D. Is dependent on the shape and volume of the container