POST UTME FUTO 2020 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A body of mass 10 kg is moving with a velocity of 5 m/s. If it is subjected to a force of 20 N, what is the acceleration produced?
A. 2 m/s²
B. 4 m/s²
C. 6 m/s²
D. 8 m/s²
Question 2
A circuit consists of a 12 V battery, a 4 Ω resistor, and a 6 Ω resistor connected in series. If the current in the circuit is 2 A, what is the potential difference across the 6 Ω resistor?
A. 8 V
B. 10 V
C. 12 V
D. 14 V
Question 3
A gas is compressed from an initial volume of 2 L to a final volume of 1 L. If the initial pressure is 2 atm and the final pressure is 3 atm, what is the work done on the gas?
A. 2 J
B. 4 J
C. 6 J
D. 8 J
Question 4
A body of mass 5 kg is moving with a velocity of 10 m/s. If it is subjected to a force of 50 N, what is the acceleration produced?
A. 2 m/s²
B. 4 m/s²
C. 6 m/s²
D. 8 m/s²
Question 5
A radioactive sample emits \alpha particles with a half-life of 5 days. If the initial activity is 100 Bq, calculate the activity after 10 days.
A. 12.5 Bq
B. 25 Bq
C. 50 Bq
D. 100 Bq
Question 6
A block of mass $m$ is attached to a spring with spring cons\tant $k$. The block is displaced from its equilibrium position by a dis\tance $x_0$ and then released from rest. Assuming the motion is simple harmonic, find the maximum acceleration of the block.
A. \omega^2 x_0
B. \frac{k}{m} x_0
C. \frac{m}{k} x_0
D. \frac{1}{\sqrt{mk}} x_0
Question 7
A wave of wavelength $\lambda$ and frequency $f$ is traveling through a medium with speed $v$. If the wave is reflected from a fixed \end, what is the amplitude of the reflected wave?
A. 0
B. \frac{1}{2} A_0
C. A_0
D. 2 A_0
Question 8
A spring with a spring cons\tant of 100 N/m is stretched by 2 m. What is the potential energy stored in the spring?
A. 200 J
B. 400 J
C. 600 J
D. 800 J
Question 9
A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 30° above the horizontal. If air resis\tance is neglected, calculate the maximum height reached by the projectile.
A. 5 m
B. 10 m
C. 15 m
D. 20 m
Question 10
A sound wave has a frequency of 200 Hz and a speed of 340 m/s. Calculate the wavelength of the wave.
A. 1.7 m
B. 1.8 m
C. 1.9 m
D. 2 m
Question 11
A capacitor consists of two parallel plates of area $A$ separated by a dis\tance $d$. The plates are charged to a potential difference $V$ and a charge $Q$ is stored on each plate. If the dielectric cons\tant of the material between the plates is $epsilon$, calculate the capaci\tance of the capacitor.
A. $A epsilon \frac{V}{d}$
B. $A epsilon \frac{Q}{d}$
C. $A epsilon \frac{V}{Q}$
D. $A epsilon \frac{Q}{V}$
Question 12
A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 60° to the horizontal. If the acceleration due to gravity is 9.8 m/s², what is the maximum height reached by the projectile?
A. 10 m
B. 15 m
C. 20 m
D. 25 m
Question 13
A gas at 300 K expands from 0.05 m^3 to 0.1 m^3. Calculate the work done by the gas if it expands against a cons\tant external pressure of 1.5 x 10^5 Pa.
A. 375 J
B. 750 J
C. 1125 J
D. 1500 J
Question 14
A parallel plate capacitor has a capaci\tance of 10 μF. If a potential difference of 20 V is applied across it, what is the charge stored on the plates?
A. 200 μC
B. 400 μC
C. 600 μC
D. 800 μC
Question 15
A ray of light passes from air into a glass slab of re\fractive index 1.5. If the angle of incidence is 30°, what is the angle of re\fraction?
A. 20°
B. 25°
C. 30°
D. 35°

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