POST UTME MADONNA UNIVERSITY 2023 Physics | Objective

Are you preparing for POST UTME MADONNA UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2023 Physics (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
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 angular frequency of the particle.
A. 5 rad/s
B. 10 rad/s
Correct C. 20 rad/s
D. 50 rad/s

Correct Answer: C

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Question 2
A parallel plate capacitor has a capaci\tance of 10 μF and is charged to a potential difference of 100 V. Calculate the energy stored in the capacitor.
Correct A. 0.5 J
B. 1 J
C. 5 J
D. 10 J

Correct Answer: A

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Question 3
A block of mass 5 kg is placed on a frictionless surface and attached to a horizontal spring with a spring cons\tant of 200 N/m. The block is displaced by 0.1 m from its equilibrium position and released from rest. Assuming the motion is simple harmonic, calculate the force exerted on the block by the spring at the ins\tant when the block is 0.05 m from its equilibrium position.
A. 10 N
B. 20 N
Correct C. 50 N
D. 100 N

Correct Answer: C

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Question 4
A sound wave with a frequency of 200 Hz and a speed of 340 m/s is traveling through a medium. Calculate the wavelength of the sound wave.
A. 1.7 m
Correct B. 1.8 m
C. 1.9 m
D. 2 m

Correct Answer: B

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Question 5
A circuit consists of a 10 Ω resistor, a 20 Ω resistor, and a 5 Ω resistor connected in series. A 12 V battery is connected across the circuit. Calculate the current flowing through the circuit.
A. 0.4 A
B. 0.6 A
Correct C. 0.8 A
D. 1 A

Correct Answer: C

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Question 6
A particle of mass 2 kg is moving in a circular path with a radius of 3 m. If the particle's angular momentum is 10 kg m^2/s, what is its linear momentum?
A. 20 kg m/s
Correct B. 30 kg m/s
C. 40 kg m/s
D. 50 kg m/s

Correct Answer: B

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Question 7
A 100 V AC source is connected to a 20 Ω resistor. If the frequency of the AC source is 50 Hz, what is the rms current flowing through the resistor?
A. 2.5 A
Correct B. 5 A
C. 10 A
D. 20 A

Correct Answer: B

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Question 8
A block of mass 5 kg is moving with a velocity of 2 m/s. If a force of 10 N is applied to the block, what is its acceleration?
A. 2 m/s^2
B. 4 m/s^2
Correct C. 6 m/s^2
D. 8 m/s^2

Correct Answer: C

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Question 9
A 10 μF capacitor is connected to a 100 V DC source. What is the energy stored in the capacitor?
Correct A. 0.5 J
B. 1 J
C. 2 J
D. 5 J

Correct Answer: A

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Question 10
A 50 Hz AC source is connected to a 10 Ω resistor. If the rms voltage is 100 V, what is the power consumed by the resistor?
A. 1000 W
Correct B. 2000 W
C. 3000 W
D. 4000 W

Correct Answer: B

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Question 11
A parallel plate capacitor has a capaci\tance of 10 μF. If a potential difference of 20 V is applied across it, what is the charge stored on each plate?
A. 200 μC
Correct B. 400 μC
C. 600 μC
D. 800 μC

Correct Answer: B

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Question 12
A block of mass 2 kg is attached to a horizontal spring with a spring 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 the maximum speed of the block?
A. 1.6 m/s
B. 2.4 m/s
Correct C. 3.2 m/s
D. 4.0 m/s

Correct Answer: C

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Question 13
A sound wave with a frequency of 200 Hz has a speed of 340 m/s. What is the wavelength of the sound wave?
A. 1.7 m
B. 1.8 m
C. 1.9 m
Correct D. 2.0 m

Correct Answer: D

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Question 14
A gas occupies a volume of 2 L at a pressure of 1 atm. If the pressure is increased to 2 atm, what is the new volume of the gas?
A. 1 L
Correct B. 2 L
C. 3 L
D. 4 L

Correct Answer: B

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Question 15
A capacitor is connected in series with a resistor and a battery. If the capacitor is charged to a potential difference of 10 V, what is the potential difference across the resistor?
A. 5 V
Correct B. 10 V
C. 15 V
D. 20 V

Correct Answer: B

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Question 16
A gas is enclosed in a container with a movable piston. The gas is heated, cau\sing its pressure to increase. If the piston is allowed to move freely, what will happen to the volume of the gas?
A. The volume will decrease
Correct B. The volume will increase
C. The volume will remain cons\tant
D. The volume will increase and then decrease

Correct Answer: B

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Question 17
A block of mass 2 kg is attached to a horizontal spring with a force cons\tant of 100 N/m. The block is displaced by 0.2 m from its equilibrium position and then released. What is the maximum speed of the block?
A. 0.2 m/s
B. 0.4 m/s
Correct C. 0.6 m/s
D. 0.8 m/s

Correct Answer: C

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Question 18
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
Correct B. 15 m
C. 20 m
D. 25 m

Correct Answer: B

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Question 19
A liquid is in a container with a small hole at the bottom. The liquid is flowing out of the hole at a rate of 0.1 m^3/s. If the density of the liquid is 1000 kg/m^3, what is the mass flow rate?
Correct A. 100 kg/s
B. 200 kg/s
C. 300 kg/s
D. 400 kg/s

Correct Answer: A

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Question 20
A body is moving in a circular path with a radius of 2 m. If the body is moving at a speed of 4 m/s, what is the centripetal acceleration?
A. 2 m/s^2
Correct B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2

Correct Answer: B

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Question 21
A gas is heated from 300 K to 400 K at cons\tant volume. If the initial volume is 2.5 L, what is the final volume?
A. 2.5 L
Correct B. 5.0 L
C. 7.5 L
D. 10.0 L

Correct Answer: B

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Question 22
A body of mass 5 kg is moving with a velocity of 10 m/s. If the force acting on it is 20 N, what is the acceleration?
A. 0.5 m/s^2
B. 1.0 m/s^2
C. 2.0 m/s^2
Correct D. 5.0 m/s^2

Correct Answer: D

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Question 23
A container is filled with 2 moles of an ideal gas at 300 K. If the pressure is 1 atm, what is the volume?
Correct A. 22.4 L
B. 44.8 L
C. 67.2 L
D. 89.6 L

Correct Answer: A

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Question 24
A spring has a spring cons\tant of 100 N/m. If a force of 50 N is applied, what is the displacement?
A. 0.5 m
Correct B. 1.0 m
C. 1.5 m
D. 2.0 m

Correct Answer: B

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Question 25
A body is moving with a velocity of 5 m/s. If the force acting on it is 10 N, what is the acceleration?
A. 0.2 m/s^2
B. 0.5 m/s^2
C. 1.0 m/s^2
Correct D. 2.0 m/s^2

Correct Answer: D

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