Post Utme Physics Past Questions and Answers

Question 1246:

Which of the following phenomena cannot be explained by the molecular theory of matter?

A. Evaporation
B. Expansion
C. Conduction
D. Radiation

Question 1247:

The most likely measurement of length of an object using a Vernier caliper is ____________

A. $3.0cm$
B. $3.3cm$
C. $3.33cm$
D. $3.333cm$

Question 1248:

If $21g$ of alcohol of density $0.7gc{m}^{-3}$ is mixed with $10g$ of water, what would be the density of the resulting mixture?

A. $780gc{m}^{-3}$
B. $0.78gc{m}^{-3}$
C. $30gc{m}^{-3}$
D. $10gc{m}^{-3}$

Question 1249:

For a particle having an $x$ coordinate that varies in time according to the expression $x=4t-2t^2$. The instantaneous velocity of the particle at
$t=2.5s$ is ____________

A. $12m/s$
B. $6m/s$
C. $0m/s$
D. $10m/s$

Question 1250:

A long-jumper leaves the ground at an angle of ${20}^{\circ }$ above the horizontal and at a speed of $11m/s$. How far does lift jump in the horizontal direction?

A. $0.384m$
B. $7.94m$
C. $8.45m$
D. $0m$