POST UTME AL-HIKMAH UNIVERSITY 2024 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A body of mass 5 kg is moving with a velocity of 10 m/s. If it is subjected to a force of 20 N, what is the acceleration of the body?
A. 2 m/s²
B. 4 m/s²
C. 6 m/s²
D. 8 m/s²
Question 2
A sound wave with a frequency of 200 Hz has a speed of 340 m/s. What is its wavelength?
A. 1.7 m
B. 1.8 m
C. 1.9 m
D. 2.0 m
Question 3
A block of mass $m$ is placed on a frictionless surface and attached to a horizontal spring with a spring cons\tant $k$. The block is displaced by a dis\tance $x$ and then released. Find the time period of the resulting simple harmonic motion.
A. \( 2pi \sqrt{\frac{m}{k}} \)
B. \( pi \sqrt{\frac{m}{k}} \)
C. \( \frac{pi}{\sqrt{\frac{m}{k}}} \)
D. \( \frac{2pi}{\sqrt{\frac{m}{k}}} \)
Question 4
A wave has a frequency of 50 Hz and a wavelength of 2 m. What is the speed of the wave?
A. 100 m/s
B. 200 m/s
C. 250 m/s
D. 300 m/s
Question 5
A gas is enclosed in a container with a movable piston. The gas is heated, cau\sing its pressure to increase. If the piston is then slowly removed, allowing the gas to expand, what will happen to the temperature of the gas?
A. The temperature will increase
B. The temperature will decrease
C. The temperature will remain cons\tant
D. The temperature will increase and then decrease
Question 6
A particle of mass 1 kg is moving in a circular path of radius 2 m with a speed of 4 m/s. What is the magnitude of the centripetal force acting on the particle?
A. 10 N
B. 20 N
C. 30 N
D. 40 N
Question 7
A circuit consists of a 12 V battery, a 4 Ω resistor, and a 6 Ω resistor connected in series. What is the current flowing through the circuit?
A. 2 A
B. 3 A
C. 4 A
D. 5 A
Question 8
A body of mass 5 kg is moving with a velocity of 10 m/s. If it is subjected to a force of 20 N, what is the change in its kinetic energy?
A. 50 J
B. 100 J
C. 150 J
D. 200 J
Question 9
A 2.5 V battery is connected in series with a 5 Ω resistor and a 10 Ω resistor. If the current through the 5 Ω resistor is 0.4 A, what is the current through the 10 Ω resistor?
A. 0.2 A
B. 0.4 A
C. 0.6 A
D. 0.8 A
Question 10
A simple harmonic motion has a frequency of 5 Hz and an amplitude of 2 m. If the particle is at its maximum displacement at t = 0 s, calculate the displacement at t = 1 s.
A. 1.0 m
B. 1.5 m
C. 2.0 m
D. 2.5 m
Question 11
A capacitor has a capaci\tance of 10 μF and is connected to a 12 V battery. If the capacitor is initially uncharged, what is the charge on the capacitor after 5 minutes?
A. 0.12 C
B. 0.24 C
C. 0.36 C
D. 0.48 C
Question 12
A 5 kg block is moving at 10 m/s on a frictionless surface. If a force of 20 N is applied to the block, what is its acceleration?
A. 0.5 m/s^2
B. 1 m/s^2
C. 2 m/s^2
D. 5 m/s^2
Question 13
A radioactive sample has a half-life of 10 years. If the initial activity is 100 Bq, what is the activity after 20 years?
A. 50 Bq
B. 25 Bq
C. 12.5 Bq
D. 6.25 Bq
Question 14
A convex lens has a focal length of 20 cm. If an object is placed 30 cm in front of it, where will the image be formed?
A. 60 cm
B. 40 cm
C. 20 cm
D. 10 cm
Question 15
A 100 W light bulb is connected to a 220 V power source. What is the current through the bulb?
A. 0.4 A
B. 0.5 A
C. 0.6 A
D. 0.8 A

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