POST UTME CHRISTOPHER UNIVERSITY 2022 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A body is moving in a circular path with a cons\tant speed of 10 m/s. If the radius of the circle is 3 m, what is the centripetal acceleration of the body?
A. 4 m/s^2
B. 6 m/s^2
C. 8 m/s^2
D. 10 m/s^2
Question 2
A particle of mass 2 kg is moving in a circular path of radius 3 m with a cons\tant speed of 4 m/s. If the particle is subjected to a centripetal force of 12 N, what is the magnitude of the acceleration of the particle?
A. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2
Question 3
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 projectile lands 10 m away from the launch point, determine the time of flight of the projectile.
A. 1 s
B. 2 s
C. 3 s
D. 4 s
Question 4
A \sinusoidal voltage of 10 V is applied to a circuit with a resis\tance of 5 Ω. What is the magnitude of the current in the circuit?
A. 0.5 A
B. 1 A
C. 2 A
D. 5 A
Question 5
A magnetic field is produced by a current-carrying wire. If the current is 2 A and the length of the wire is 0.5 m, what is the magnitude of the magnetic field at a dis\tance of 0.2 m?
A. 0.1 T
B. 0.2 T
C. 0.3 T
D. 0.4 T
Question 6
A block of mass 5 kg is attached to a horizontal, massless spring with a force cons\tant of 200 N/m. The block is displaced by 0.2 m from its equilibrium position and released from rest. Assuming the motion is simple harmonic, determine the angular frequency of the block's motion.
A. 2 rad/s
B. 4 rad/s
C. 6 rad/s
D. 8 rad/s
Question 7
A gas is heated from 300 K to 400 K at cons\tant volume. If the initial pressure is 1.2 atm, what is the final pressure?
A. 1.5 atm
B. 1.8 atm
C. 2.0 atm
D. 2.2 atm
Question 8
A particle of mass 2 kg is moving in a circular path with a radius of 3 m. If the particle has a speed of 4 m/s, determine the centripetal acceleration of the particle.
A. 1 m/s^2
B. 2 m/s^2
C. 3 m/s^2
D. 4 m/s^2
Question 9
A car is traveling at a speed of 40 m/s when the brakes are applied. If the car is brought to rest in a dis\tance of 30 m, what is the magnitude of the acceleration of the car?
A. 2 m/s^2
B. 2.5 m/s^2
C. 3 m/s^2
D. 3.5 m/s^2
Question 10
A 100 Ω resistor is connected in series with a 20 μF capacitor and a 10 μH inductor. If the circuit is driven by a 10 V AC source with a frequency of 50 Hz, determine the impedance of the circuit.
A. 150 Ω
B. 200 Ω
C. 250 Ω
D. 300 Ω
Question 11
A parallel plate capacitor has plates of area $A$ and separation $d$. If the capaci\tance is $C$, find the value of $d$ in terms of $A$ and $C$.
A. \frac{A\epsilon_0}{C}
B. \frac{A}{C\epsilon_0}
C. \frac{C\epsilon_0}{A}
D. \frac{A}{C}
Question 12
A block of mass 3 kg is attached to a horizontal, massless spring with a force cons\tant of 150 N/m. If the block is displaced by 0.1 m from its equilibrium position and released from rest, what is the frequency of the oscillations?
A. 2 Hz
B. 3 Hz
C. 4 Hz
D. 5 Hz
Question 13
A charged particle moves through a magnetic field. If the particle's velocity is perp\endicular to the magnetic field, what is the direction of the force exerted on the particle?
A. towards the magnetic field
B. perp\endicular to the magnetic field
C. away from the magnetic field
D. in a circular path around the magnetic field
Question 14
A vector has a magnitude of 5 units and makes an angle of 30° with the positive x-axis. If the vector is rotated by 60° counterclockwise, what is the new magnitude of the vector?
A. 5 units
B. 6 units
C. 7 units
D. 8 units
Question 15
A wave has a frequency of 50 Hz and a wavelength of 2 m. What is the speed of the wave?
A. 10 m/s
B. 20 m/s
C. 50 m/s
D. 100 m/s

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