Post Utme University of Calabar Physics Past Questions and Answers

Question 11:

A truck traveling with a velocity of $40m/s$ applies the brakes and comes to a halt after 20 seconds. What is the distance traveled by the truck before coming to a halt

A. 40 m
B. 800 m
C. 400 m
D. 10 m

Question 12:

If the linear expansitivity of a metal rod is $4\times {10}^{-5}$ per C, what will be the new length of thr rod if it heated heated from ${15}^{\circ }C$ to ${95}^{\circ }C$ from its original length of $20cm$

A. $0.064cm$
B. $0.64cm$
C. $20.64cm$
D. $20.064cm$

Question 13:

$44KJ$ of heat was used in raising the temperature of $2kg$ of paraffin oil from $360K$ to $370K$. Calculate the specific heat capacity of paraffin oil

A. $2.2J/kg/K$
B. $22\times {10}^{3}J/kg/K$
C. $22\times {10}^{5}J/kg/K$
D. 220 I kg / K

Question 14:

A simple machine overcomes a load of $4000N$ when a force of $200N$ is applied. If the velocity ration of the machine is 25 , calculate the efficiency of the machine?

A. $1,25\mathrm{\%}$
B. $80\mathrm{\%}$
C. $125\mathrm{\%}$
D. $0.8\mathrm{\%}$

Question 15:

A long sighted person is to read a book held at a distance of $20cm$ from the eyes. Which of the following will the person require to read the book with ease?

A. Nothing
B. Concave lens
C. Convex lens
D. Concave mirro