POST UTME SKYLINE UNIVERSITY 2018 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 with a radius of 3 m. If the particle experiences a centripetal acceleration of 4 m/s^2, what is its angular velocity?
A. 2 rad/s
B. 4 rad/s
C. 6 rad/s
D. 8 rad/s
Question 2
A 10 Ω resistor is connected in series with a 20 Ω resistor and a 30 Ω resistor. If a potential difference of 12 V is applied across the circuit, calculate the current flowing through the 10 Ω resistor.
A. 0.25 A
B. 0.5 A
C. 0.75 A
D. 1 A
Question 3
A particle of mass 2 kg is moving in a circular path with a cons\tant speed of 4 m/s. If the radius of the path is 3 m, calculate the magnitude of the centripetal acceleration.
A. 2.67 m/s^2
B. 3.33 m/s^2
C. 4 m/s^2
D. 5 m/s^2
Question 4
A 10 Ω resistor is connected in series with a 20 μF capacitor and a 50 Hz AC voltage source. What is the impedance of the circuit?
A. 10 Ω
B. 15 Ω
C. 20 Ω
D. 25 Ω
Question 5
A uniform magnetic field of strength 2 T is applied to a current-carrying wire of length 0.5 m. If the current in the wire is 5 A, what is the magnitude of the magnetic force experienced by the wire?
A. 0.5 N
B. 1 N
C. 2 N
D. 5 N
Question 6
A 50 Hz AC voltage source is connected to a 100 Ω resistor. What is the peak value of the current flowing through the resistor?
A. 0.5 A
B. 1.0 A
C. 1.5 A
D. 2.0 A
Question 7
A 2.0 L sample of a gas at 300 K and 1.0 atm is heated to 400 K at cons\tant volume. What is the final pressure of the gas?
A. 1.5 atm
B. 2.0 atm
C. 2.5 atm
D. 3.0 atm
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. 100 J
B. 200 J
C. 300 J
D. 400 J
Question 9
A force of 10 N is applied to an object of mass 2 kg. What is the acceleration of the object?
A. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2
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. The particle is subjected to a centripetal force of 12 N. What is the magnitude of the acceleration of the particle?
A. 8 m/s^2
B. 10 m/s^2
C. 12 m/s^2
D. 16 m/s^2
Question 11
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. 1 A
B. 2 A
C. 3 A
D. 4 A
Question 12
A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 60° above the horizontal. What is the maximum height reached by the projectile?
A. 10 m
B. 15 m
C. 20 m
D. 25 m
Question 13
A heat engine operates between the temperatures of 300 K and 400 K. If it produces 100 J of work, what is the efficiency of the engine?
A. 0.25
B. 0.30
C. 0.35
D. 0.40
Question 14
A particle of mass 2 kg is moving in a circular path of radius 3 m with a speed of 4 m/s. If the particle is subject to a centripetal force of 10 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 15
A parallel plate capacitor has plates of area 0.04 m^2 and separation 0.02 m. If the capaci\tance is 2.5 x 10^-10 F, what is the value of the dielectric cons\tant?
A. 1.25
B. 2.5
C. 5
D. 10

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