POST UTME IGBINEDION UNIVERSITY 2017 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A particle of mass 3 kg is moving in a circular path with a radius of 0.5 m. The particle has a speed of 10 m/s. Calculate the centripetal force acting on the particle.
A. 50 N
B. 60 N
C. 70 N
D. 80 N
Question 2
A capacitor consists of two parallel plates, each of area 0.01 m², separated by a dis\tance of 0.001 m. If the dielectric cons\tant of the material between the plates is 3, what is the capaci\tance?
A. 10 nF
B. 20 nF
C. 30 nF
D. 40 nF
Question 3
A particle of mass 2 kg is attached to a spring with a spring cons\tant of 100 N/m. It is displaced by 0.2 m from its equilibrium position and released from rest. Assuming the motion is simple harmonic, calculate the maximum kinetic energy of the particle.
A. 0.8 J
B. 1.6 J
C. 2.4 J
D. 3.2 J
Question 4
A parallel plate capacitor consists of two 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 charge stored on the capacitor when a potential difference of 10 V is applied across it?
A. 10^-7 C
B. 10^-6 C
C. 10^-5 C
D. 10^-4 C
Question 5
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 6
A body of mass 2 kg is moving with a velocity of 5 m/s. What is the work done by the body in moving 10 m?
A. 20 J
B. 30 J
C. 40 J
D. 50 J
Question 7
A block of mass 5 kg is placed on a frictionless surface and attached to a horizontal spring with a force cons\tant of 2 N/m. If the block is displaced by 2 m from its equilibrium position and released from rest, what is the maximum speed of the block?
A. 2 m/s
B. 4 m/s
C. 6 m/s
D. 8 m/s
Question 8
A wave of frequency 100 Hz and amplitude 0.1 m is traveling through a medium with a speed of 300 m/s. If the wave is reflected from a fixed \end, what is the maximum acceleration of the wave?
A. 10 m/s^2
B. 20 m/s^2
C. 30 m/s^2
D. 40 m/s^2
Question 9
A wave has a frequency of 50 Hz and a wavelength of 0.2 m. Calculate the speed of the wave.
A. 10 m/s
B. 20 m/s
C. 30 m/s
D. 40 m/s
Question 10
A particle of mass $m$ is moving in a circular orbit of radius $R$ under the influence of a central force given by $F(r) = \frac{k}{r^2}$. If the particle's velocity is $v$, what is the total energy of the particle?
A. $\frac{1}{2}mv^2 + \frac{k}{R}$
B. $\frac{1}{2}mv^2 - \frac{k}{R}$
C. $\frac{1}{2}mv^2 + \frac{k}{R}$
D. $\frac{1}{2}mv^2 - \frac{k}{R^2}$
Question 11
A wave has a frequency of 100 Hz and a wavelength of 0.1 m. Calculate the speed of the wave.
A. 10 m/s
B. 20 m/s
C. 30 m/s
D. 40 m/s
Question 12
A heat engine operates between the temperatures 300 K and 400 K. What is the efficiency of the engine?
A. 20%
B. 30%
C. 40%
D. 50%
Question 13
A capacitor has a capaci\tance of 10^-6 F and is charged to a potential difference of 10 V. What is the energy stored in the capacitor?
A. 10^-5 J
B. 10^-4 J
C. 10^-3 J
D. 10^-2 J
Question 14
A liquid of density 800 kg/m³ is flowing through a horizontal pipe of radius 0.05 m. If the pressure difference between the two \ends of the pipe is 2000 Pa, calculate the volume flow rate.
A. 0.01 m³/s
B. 0.02 m³/s
C. 0.03 m³/s
D. 0.04 m³/s
Question 15
A body of mass 5 kg is moving with a velocity of 10 m/s. If the force applied to the body is 20 N, calculate the acceleration produced.
A. 2 m/s²
B. 4 m/s²
C. 6 m/s²
D. 8 m/s²

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