POST UTME COAL CITY UNIVERSITY 2022 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
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 subject to a centripetal force of 12 N, what is the magnitude of the acceleration of the particle?
A. 10 m/s^2
B. 12 m/s^2
C. 15 m/s^2
D. 20 m/s^2
Question 2
A 5 kg block is moving with a speed of 10 m/s on a horizontal surface. If a horizontal force of 20 N is applied to the block, what is its acceleration?
A. 0.5 m/s^2
B. 1.0 m/s^2
C. 1.5 m/s^2
D. 2.0 m/s^2
Question 3
A 5 kg block is moving with a speed of 10 m/s on a horizontal surface. If a horizontal force of 20 N is applied to the block, what is its acceleration?
A. 0.5 m/s^2
B. 1.0 m/s^2
C. 1.5 m/s^2
D. 2.0 m/s^2
Question 4
A magnetic field is produced by a current-carrying coil. If the current is 2 A and the number of turns is 50, determine the magnetic field strength.
A. 0.1 T
B. 0.2 T
C. 0.3 T
D. 0.4 T
Question 5
A charged particle of mass 1 kg and charge 2 C is moving in a magnetic field of strength 0.5 T. If the particle has a velocity of 3 m/s, what is the magnitude of the force acting on the particle?
A. 0.5 N
B. 1 N
C. 2 N
D. 3 N
Question 6
A fluid is flowing through a horizontal pipe with a cross-sectional area of 0.01 m^2. If the pressure difference between the two \ends of the pipe is 1000 Pa, determine the flow rate.
A. 0.01 m^3/s
B. 0.02 m^3/s
C. 0.03 m^3/s
D. 0.04 m^3/s
Question 7
A 2 kg block is attached to a horizontal, massless spring with a force cons\tant of 100 N/m. If the block is displaced by 0.2 m from its equilibrium position and released from rest, what is its maximum speed?
A. 0.5 m/s
B. 1.0 m/s
C. 1.5 m/s
D. 2.0 m/s
Question 8
A circuit consists of a 10 Ω resistor and a 20 Ω resistor connected in series. If a voltage of 12 V is applied across the circuit, what is the current flowing through the circuit?
A. 0.5 A
B. 1 A
C. 2 A
D. 4 A
Question 9
A spring is stretched by a force of 10 N. If the spring cons\tant is 2 N/m, determine the displacement.
A. 2 m
B. 4 m
C. 6 m
D. 8 m
Question 10
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. What is the magnitude of the force acting on the particle?
A. 16 N
B. 24 N
C. 32 N
D. 40 N
Question 11
A 10 µF capacitor is connected in series with a 20 µF capacitor. If a 12 V battery is connected across the combination, what is the equivalent capaci\tance of the circuit?
A. 2 µF
B. 4 µF
C. 6 µF
D. 8 µF
Question 12
A 2 kg block is susp\ended from a spring balance. If the balance reads 20 N, what is the tension in the string?
A. 10 N
B. 15 N
C. 20 N
D. 25 N
Question 13
A wave has a frequency of 50 Hz and a wavelength of 0.2 m. If the wave is traveling in the positive x-direction, what is the direction of the group velocity?
A. Positive x-direction
B. Negative x-direction
C. Positive y-direction
D. Negative y-direction
Question 14
A ray of light passes through a prism and is re\fracted. If the angle of incidence is 30° and the angle of re\fraction is 20°, determine the angle of deviation.
A. 10°
B. 20°
C. 30°
D. 40°
Question 15
A 5 kg block is susp\ended from a spring with a spring cons\tant of 200 N/m. If the block is displaced by 2 m from its equilibrium position, what is the potential energy stored in the spring?
A. 100 J
B. 200 J
C. 300 J
D. 400 J

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