POST UTME COVENANT UNIVERSITY 2025 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A particle of mass 1 kg is moving in a straight line with a velocity of 2 m/s. If the particle is subjected to a force of 5 N directed perp\endicular to its velocity, what is the magnitude of the acceleration of the particle?
A. 2 m/s^2
B. 5 m/s^2
C. 10 m/s^2
D. 15 m/s^2
Question 2
A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 30° above the horizontal. If the acceleration due to gravity is 9.8 m/s^2, what is the maximum height reached by the projectile?
A. 10 m
B. 5 m
C. 15 m
D. 20 m
Question 3
A capacitor of capaci\tance 10 μF is connected in series with a resistor of resis\tance 20 Ω. If a voltage of 50 V is applied across the circuit, what is the current flowing through the circuit?
A. 0.25 A
B. 0.5 A
C. 1 A
D. 2 A
Question 4
A parallel plate capacitor has plates of area 0.04 m^2 and separation 0.02 m. If the capaci\tance is 8.0 x 10^-12 F, what is the energy stored when the potential difference between the plates is 10 V?
A. 4.0 x 10^-10 J
B. 2.0 x 10^-10 J
C. 1.0 x 10^-10 J
D. 5.0 x 10^-11 J
Question 5
A 5 μF capacitor is connected in series with a 10 Ω resistor. If a 12 V battery is connected across the circuit, what is the time cons\tant of the circuit?
A. 0.2 s
B. 0.4 s
C. 0.6 s
D. 0.8 s
Question 6
A block of mass 5.0 kg is attached to a horizontal spring with a force cons\tant of 100 N/m. If the block is displaced by 2.0 m from its equilibrium position and released, what is the maximum speed of the block?
A. 2.0 m/s
B. 4.0 m/s
C. 6.0 m/s
D. 8.0 m/s
Question 7
A particle of mass 2.0 kg is moving in a circular path of radius 3.0 m with a speed of 4.0 m/s. What is the magnitude of the centripetal force acting on the particle?
A. 16 N
B. 32 N
C. 64 N
D. 128 N
Question 8
A particle of mass 1 kg is moving in a circular path with a radius of 2 m. If the force acting on the particle is 10 N, what is the centripetal acceleration?
A. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2
Question 9
A sound wave with frequency $f$ and amplitude $A$ is propagating through a medium with speed $v$. What is the wavelength of the sound wave?
A. \frac{v}{f}
B. \frac{f}{v}
C. \frac{A}{f}
D. \frac{v}{A}
Question 10
A parallel plate capacitor has a capaci\tance of 10 μF. If a voltage of 20 V is applied across the plates, what is the energy stored in the capacitor?
A. 0.02 J
B. 0.04 J
C. 0.06 J
D. 0.08 J
Question 11
A capacitor consists of two parallel plates, each of area 0.1 m^2, separated by a dis\tance of 0.01 m. If the capaci\tance of the capacitor is 10^-6 F, what is the magnitude of the electric field between the plates when a charge of 2 x 10^-6 C is stored on the plates?
A. 2 x 10^4 N/C
B. 1 x 10^4 N/C
C. 5 x 10^3 N/C
D. 1 x 10^3 N/C
Question 12
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 voltage across the 6 Ω resistor?
A. 12 V
B. 8 V
C. 10 V
D. 6 V
Question 13
A radioactive sample has a half-life of 5.0 years. If the initial activity is 1000 Bq, what is the activity after 10 years?
A. 125 Bq
B. 250 Bq
C. 500 Bq
D. 1000 Bq
Question 14
A wave has a frequency of 50 Hz and a wavelength of 2 m. If the wave is traveling in the positive x-direction, what is the equation of the wave?
A. y(x,t) = A \sin\( \frac{\pi}{2} x - 2\pi ft \)
B. y(x,t) = A \sin\( \frac{2\pi}{2} x - 2\pi ft \)
C. y(x,t) = A \cos\( \frac{2\pi}{2} x - 2\pi ft \)
D. y(x,t) = A \cos\( \frac{\pi}{2} x - 2\pi ft \)
Question 15
A particle of mass $m$ is confined to a one-dimensional box of length $L$. The ground state wave function of the particle is given by $psi_1(x) = \sqrt{\frac{2}{L}} \sinleft\( \frac{pi x}{L}\right \)$. What is the expectation value of the position operator for this state?
A. \frac{L}{2}
B. \frac{L}{4}
C. \frac{3L}{4}
D. 0

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Help others prepare! Share this practice hub: