Post Utme Physics Past Questions and Answers

Question 31:

Three vectors $A,B$, and $C$ add together to yield zero: $A+B+C=0$. The vectors $A$ and $C$ point in opposite directions and their magnitudes are related by the expression: $A=2C$. Which one of the following conclusions is correct?

A. $A$ and $B$ have equal magnitudes and point in opposite directions.
B. $B$ and $C$ have equal magnitudes and point in the same direction.
C. $B$ and $C$ have equal magnitudes and point in opposite directions.
D. $A$ and $B$ point in the same direction, but $A$ has twice the magnitude of $B$.

Question 32:

Which of the following could be measured in the same units as force?

A. Energy/distance
B. Energy $x$ distance
C. Energy/time
D. Momentum $x$ distance

Question 33:

Which of the following does not affect the pressure at a point beneath the surface of a liquid?

A. Surface area of the liquid.
B. Density of the liquid
C. Depth of the point below the surface
D. Strength of the gravitational field

Question 34:

Which of the following pairs contains one vector and one scalar quantity?

A. Displacement: acceleration
B. Force : kinetic energy
C. Momentum : velocity
D. Power : speed

Question 35:

Which of the following statements is correct

A. Uniform speed always implies uniform velocity
B. Uniform speed always implies zero acceleration
C. Uniform speed may imply nonzero acceleration
D. Constant momentum implies constant acceleration